-
helen keller
Muestra los diferentes momentos de la maestra Anne Sullivan
published: 03 May 2016
-
a scary science data story
Happy Halloween 2022!
Link to Dr. Laskowski's blog post, What to do when you don't trust your data anymore:
https://laskowskilab.faculty.ucdavis.edu/2020/01/29/retractions/
Link to @scientificreactions7938 video:
https://www.youtube.com/watch?v=HX8XnZ63_Mc
#PruittData #ScaryScience
published: 11 Oct 2022
-
Top 5 Disney TV Series of 2022
If you want to to know the greatest Disney TV Shows that came out 2022 you should definitely watch our picks for the best Disney TV Series of 2022. All Disney+ series in this ranking started in 2022 and are available on Disney plus.
Discover the best…
📹 YouTube tool: https://www.tubebuddy.com/communitv
We missed your favorite Disney TV Series of 2022? Let us know in the comments!
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Facebook: http://bit.ly/2PbYxGn
TV Series in this Ranking:
5. Moon Knight (2022): (00:10)
4. Obi-Wan Kenobi (2022): (00:47)
3. Star Wars: Tales of the Jedi (2022- ): (01:32)
2. Light & Magic (2022): (02:21)
1. Star Wars: Andor (2022- ): (03:57)
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For collaboration requests please contact us via…
Mail: [email protected]
Music: www.ben...
published: 09 May 2023
-
My Pet Snake Feeding Time
Snake
Read in another language
Watch this page
Edit
This article is about the animal. For other uses, see Snake (disambiguation).
Snakes are elongated, legless, carnivorousreptiles of the suborder Serpentes.[2] Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skullswith several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads with their highly mobile jaws. To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have evolved elongate bodi...
published: 10 Aug 2019
-
history of rockets
Rocket
From Wikipedia, the free encyclopedia
This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation).
Page semi-protected
A Soyuz-U, at Baikonur cosmodrome's Site 1/5 in Kazakhstan
A rocket is a missile, spacecraft, aircraft or other vehicle that obtains thrust from a rocket engine. Rocket engine exhaust is formed entirely from propellants carried within the rocket before use.[1] Rocket engines work by action and reaction. Rocket engines push rockets forward by expelling their exhaust in the opposite direction at high speed. Rockets rely on momentum, airfoils, auxiliary reaction engines, gimballed thrust, momentum wheels, deflection of the exhaust stream, propellant flow, spin, and/or gravity to help control flight.
Rockets are relatively lig...
published: 29 Jan 2015
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Unknown Facts about Megalodon Shark #shorts #shark #viral
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Megalodon
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For other uses, see Megalodon (disambiguation).
"Giant white shark" redirects here. For its long-thought relative, and species of mackerel shark, see Great white shark.
Megalodon (Otodus megalodon),[6][7][8] meaning "big tooth", is an extinct species of mackerel shark that lived approximately 23 to 3.6 million years ago (Mya), during the Early Miocene to the Pliocene.[9] It was formerly thought to be a member of the family Lamnidae and a close relative of the great white shark (Carcharodon carcharias). However, it is now classified into the extinct family Otodontidae, which diverged from the great white shark during the Early Cretaceous. Its genus placement is still debated, authors placing it in either Carcharocles...
published: 19 Jan 2022
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What's The Difference Between Hurricanes Cyclones & Typhoons?
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Hurricanes, Typhoons, and Cyclones: https://ocean.si.edu/planet-ocean/waves-storms-tsunamis/hurricanes-typhoons-and-cyclones
Tropical Storms On The BBC:https://www.bbc.co.uk/newsr...
published: 30 Mar 2022
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A New Song, "inclined"
published: 03 Jun 2019
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Internet Working explained with Frontend and Backend
Hey guys in this video I am #explaining how #internet actually works and what is frontend and backend.
You should watch this before learning web #development or any software development
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published: 17 Sep 2019
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तितली /Buterfly
तितली butterfly
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Butterfly
For other uses, see Butterfly (disambiguation).
Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises the large superfamilyPapilionoidea, which contains at least one former group, the skippers (formerly the superfamily "Hesperioidea") and the most recent analyses suggest it also contains the moth-butterflies (formerly the superfamily "Hedyloidea"). Butterfly fossils date to the Paleocene, which was about 56 million years ago.
Butterflies
Temporal range: Palaeocene-Present, 56–0 Ma
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Papilio machaonScientific ...
published: 22 Apr 2018
12:12
helen keller
Muestra los diferentes momentos de la maestra Anne Sullivan
Muestra los diferentes momentos de la maestra Anne Sullivan
https://wn.com/Helen_Keller
Muestra los diferentes momentos de la maestra Anne Sullivan
- published: 03 May 2016
- views: 3712057
47:53
a scary science data story
Happy Halloween 2022!
Link to Dr. Laskowski's blog post, What to do when you don't trust your data anymore:
https://laskowskilab.faculty.ucdavis.edu/2020/01/2...
Happy Halloween 2022!
Link to Dr. Laskowski's blog post, What to do when you don't trust your data anymore:
https://laskowskilab.faculty.ucdavis.edu/2020/01/29/retractions/
Link to @scientificreactions7938 video:
https://www.youtube.com/watch?v=HX8XnZ63_Mc
#PruittData #ScaryScience
https://wn.com/A_Scary_Science_Data_Story
Happy Halloween 2022!
Link to Dr. Laskowski's blog post, What to do when you don't trust your data anymore:
https://laskowskilab.faculty.ucdavis.edu/2020/01/29/retractions/
Link to @scientificreactions7938 video:
https://www.youtube.com/watch?v=HX8XnZ63_Mc
#PruittData #ScaryScience
- published: 11 Oct 2022
- views: 175184
4:48
Top 5 Disney TV Series of 2022
If you want to to know the greatest Disney TV Shows that came out 2022 you should definitely watch our picks for the best Disney TV Series of 2022. All Disney+ ...
If you want to to know the greatest Disney TV Shows that came out 2022 you should definitely watch our picks for the best Disney TV Series of 2022. All Disney+ series in this ranking started in 2022 and are available on Disney plus.
Discover the best…
📹 YouTube tool: https://www.tubebuddy.com/communitv
We missed your favorite Disney TV Series of 2022? Let us know in the comments!
Follow us on...
Instagram: http://bit.ly/2rnljTB
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TV Series in this Ranking:
5. Moon Knight (2022): (00:10)
4. Obi-Wan Kenobi (2022): (00:47)
3. Star Wars: Tales of the Jedi (2022- ): (01:32)
2. Light & Magic (2022): (02:21)
1. Star Wars: Andor (2022- ): (03:57)
You want to work with us?
For collaboration requests please contact us via…
Mail:
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https://wn.com/Top_5_Disney_Tv_Series_Of_2022
If you want to to know the greatest Disney TV Shows that came out 2022 you should definitely watch our picks for the best Disney TV Series of 2022. All Disney+ series in this ranking started in 2022 and are available on Disney plus.
Discover the best…
📹 YouTube tool: https://www.tubebuddy.com/communitv
We missed your favorite Disney TV Series of 2022? Let us know in the comments!
Follow us on...
Instagram: http://bit.ly/2rnljTB
Facebook: http://bit.ly/2PbYxGn
TV Series in this Ranking:
5. Moon Knight (2022): (00:10)
4. Obi-Wan Kenobi (2022): (00:47)
3. Star Wars: Tales of the Jedi (2022- ): (01:32)
2. Light & Magic (2022): (02:21)
1. Star Wars: Andor (2022- ): (03:57)
You want to work with us?
For collaboration requests please contact us via…
Mail:
[email protected]
Music: www.bensound.com
- published: 09 May 2023
- views: 30172
1:47
My Pet Snake Feeding Time
Snake
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This article is about the animal. For other uses, see Snake (disambiguation).
Snakes are elongated, leg...
Snake
Read in another language
Watch this page
Edit
This article is about the animal. For other uses, see Snake (disambiguation).
Snakes are elongated, legless, carnivorousreptiles of the suborder Serpentes.[2] Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skullswith several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads with their highly mobile jaws. To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have evolved elongate bodies without limbs or with greatly reduced limbs about twenty-five times independently via convergent evolution, leading to many lineages of legless lizards.[3]Legless lizards resemble snakes, but several common groups of legless lizards have eyelids and external ears, which snakes lack, although this rule is not universal (see Amphisbaenia, Dibamidae, and Pygopodidae).
Snakes
Temporal range:
Late Cretaceous – Present,[1] 94–0 Ma
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Scientific classificationKingdom:AnimaliaPhylum:ChordataClass:ReptiliaOrder:SquamataClade:OphidiaSuborder:Serpentes
Linnaeus, 1758Infraorders
Alethinophidia Nopcsa, 1923
Scolecophidia Cope, 1864
Approximate world distribution of snakes, all species
Living snakes are found on every continent except Antarctica, and on most smaller land masses; exceptions include some large islands, such as Ireland, Iceland, Greenland, the Hawaiian archipelago, and the islands of New Zealand, and many small islands of the Atlantic and central Pacific oceans.[4]Additionally, sea snakes are widespread throughout the Indian and Pacific Oceans. More than 20 families are currently recognized, comprising about 520 genera and about 3,600 species.[5][6] They range in size from the tiny, 10.4 cm (4.1 in)-long Barbados thread snake[7] to the reticulated python of 6.95 meters (22.8 ft) in length.[8] The fossil species Titanoboa cerrejonensis was 12.8 meters (42 ft) long.[9] Snakes are thought to have evolved from either burrowing or aquatic lizards, perhaps during the Jurassic period, with the earliest known fossils dating to between 143 and 167 Ma ago.[10] The diversity of modern snakes appeared during the Paleocene epoch (c 66 to 56 Ma ago, after the Cretaceous–Paleogene extinction event). The oldest preserved descriptions of snakes can be found in the Brooklyn Papyrus.
Most species are nonvenomous and those that have venom use it primarily to kill and subdue prey rather than for self-defense. Some possess venom potent enough to cause painful injury or death to humans. Nonvenomous snakes either swallow prey alive or kill by constriction.
Etymology
The English word snake comes from Old English snaca, itself from Proto-Germanic*snak-an- (cf. Germanic Schnake "ring snake", Swedish snok "grass snake"), from Proto-Indo-European root *(s)nēg-o- "to crawl", "to creep", which also gave sneak as well as Sanskritnāgá "snake".[11] The word ousted adder, as adder went on to narrow in meaning, though in Old English næddre was the general word for snake.[12] The other term, serpent, is from French, ultimately from Indo-European *serp-(to creep),[13] which also gave Ancient Greekhérpō (ἕρπω) "I crawl".
Evolution
A phylogenetic overview of the extant groupsModern snakesScolecophidia
Leptotyphlopidae
Anomalepididae
Typhlopidae
AlethinophidiaAmerophidia
Anilius
Tropidophiidae
AfrophidiaUropeltoidea
Uropeltidae
Anomochilus
Cylindrophis
MacrostomataPythonoidea
Pythonidae
Xenopeltis
Loxocemus
Caenophidia
Acrochordidae
Xenodermidae
Pareidae
Viperidae
Homalopsidae
Lamprophiidae
Elapidae
Colubridae
Booidea
Boidae
Erycinae
Calabaria
Ungaliophiinae
Sanzinia
Candoia
Note: the tree only indicates relationships, not evolutionary branching times.[14]
The fossil record of snakes is relatively poor because snake skeletons are typically small and fragile making fossilization uncommon. Fossils readily identifiable as snakes (though often retaining hind limbs) first appear in the fossil record during the Cretaceous period.[15]The earliest known true snake fossils (members of the crown group Serpentes) come from the marine simoliophiids, the oldest of which is the Late Cretaceous(Cenomanian age) Haasiophis terrasanctus,[1]dated to between 112 and 94 million years old.[16]
Based on comparative anatomy.
https://wn.com/My_Pet_Snake_Feeding_Time
Snake
Read in another language
Watch this page
Edit
This article is about the animal. For other uses, see Snake (disambiguation).
Snakes are elongated, legless, carnivorousreptiles of the suborder Serpentes.[2] Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skullswith several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads with their highly mobile jaws. To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have evolved elongate bodies without limbs or with greatly reduced limbs about twenty-five times independently via convergent evolution, leading to many lineages of legless lizards.[3]Legless lizards resemble snakes, but several common groups of legless lizards have eyelids and external ears, which snakes lack, although this rule is not universal (see Amphisbaenia, Dibamidae, and Pygopodidae).
Snakes
Temporal range:
Late Cretaceous – Present,[1] 94–0 Ma
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Scientific classificationKingdom:AnimaliaPhylum:ChordataClass:ReptiliaOrder:SquamataClade:OphidiaSuborder:Serpentes
Linnaeus, 1758Infraorders
Alethinophidia Nopcsa, 1923
Scolecophidia Cope, 1864
Approximate world distribution of snakes, all species
Living snakes are found on every continent except Antarctica, and on most smaller land masses; exceptions include some large islands, such as Ireland, Iceland, Greenland, the Hawaiian archipelago, and the islands of New Zealand, and many small islands of the Atlantic and central Pacific oceans.[4]Additionally, sea snakes are widespread throughout the Indian and Pacific Oceans. More than 20 families are currently recognized, comprising about 520 genera and about 3,600 species.[5][6] They range in size from the tiny, 10.4 cm (4.1 in)-long Barbados thread snake[7] to the reticulated python of 6.95 meters (22.8 ft) in length.[8] The fossil species Titanoboa cerrejonensis was 12.8 meters (42 ft) long.[9] Snakes are thought to have evolved from either burrowing or aquatic lizards, perhaps during the Jurassic period, with the earliest known fossils dating to between 143 and 167 Ma ago.[10] The diversity of modern snakes appeared during the Paleocene epoch (c 66 to 56 Ma ago, after the Cretaceous–Paleogene extinction event). The oldest preserved descriptions of snakes can be found in the Brooklyn Papyrus.
Most species are nonvenomous and those that have venom use it primarily to kill and subdue prey rather than for self-defense. Some possess venom potent enough to cause painful injury or death to humans. Nonvenomous snakes either swallow prey alive or kill by constriction.
Etymology
The English word snake comes from Old English snaca, itself from Proto-Germanic*snak-an- (cf. Germanic Schnake "ring snake", Swedish snok "grass snake"), from Proto-Indo-European root *(s)nēg-o- "to crawl", "to creep", which also gave sneak as well as Sanskritnāgá "snake".[11] The word ousted adder, as adder went on to narrow in meaning, though in Old English næddre was the general word for snake.[12] The other term, serpent, is from French, ultimately from Indo-European *serp-(to creep),[13] which also gave Ancient Greekhérpō (ἕρπω) "I crawl".
Evolution
A phylogenetic overview of the extant groupsModern snakesScolecophidia
Leptotyphlopidae
Anomalepididae
Typhlopidae
AlethinophidiaAmerophidia
Anilius
Tropidophiidae
AfrophidiaUropeltoidea
Uropeltidae
Anomochilus
Cylindrophis
MacrostomataPythonoidea
Pythonidae
Xenopeltis
Loxocemus
Caenophidia
Acrochordidae
Xenodermidae
Pareidae
Viperidae
Homalopsidae
Lamprophiidae
Elapidae
Colubridae
Booidea
Boidae
Erycinae
Calabaria
Ungaliophiinae
Sanzinia
Candoia
Note: the tree only indicates relationships, not evolutionary branching times.[14]
The fossil record of snakes is relatively poor because snake skeletons are typically small and fragile making fossilization uncommon. Fossils readily identifiable as snakes (though often retaining hind limbs) first appear in the fossil record during the Cretaceous period.[15]The earliest known true snake fossils (members of the crown group Serpentes) come from the marine simoliophiids, the oldest of which is the Late Cretaceous(Cenomanian age) Haasiophis terrasanctus,[1]dated to between 112 and 94 million years old.[16]
Based on comparative anatomy.
- published: 10 Aug 2019
- views: 93285
3:07
history of rockets
Rocket
From Wikipedia, the free encyclopedia
This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation).
Page semi-pr...
Rocket
From Wikipedia, the free encyclopedia
This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation).
Page semi-protected
A Soyuz-U, at Baikonur cosmodrome's Site 1/5 in Kazakhstan
A rocket is a missile, spacecraft, aircraft or other vehicle that obtains thrust from a rocket engine. Rocket engine exhaust is formed entirely from propellants carried within the rocket before use.[1] Rocket engines work by action and reaction. Rocket engines push rockets forward by expelling their exhaust in the opposite direction at high speed. Rockets rely on momentum, airfoils, auxiliary reaction engines, gimballed thrust, momentum wheels, deflection of the exhaust stream, propellant flow, spin, and/or gravity to help control flight.
Rockets are relatively lightweight and powerful, capable of generating large accelerations and of attaining extremely high speeds with reasonable efficiency. Rockets are not reliant on the atmosphere and work very well in space.
Rockets for military and recreational uses date back to at least 13th century China.[2] Significant scientific, interplanetary and industrial use did not occur until the 20th century, when rocketry was the enabling technology for the Space Age, including setting foot on the moon. Rockets are now used for fireworks, weaponry, ejection seats, launch vehicles for artificial satellites, human spaceflight, and space exploration.
Chemical rockets are the most common type of high power rocket, typically creating a high speed exhaust by the combustion of fuel with an oxidizer. The stored propellant can be a simple pressurized gas or a single liquid that disassociates in the presence of a catalyst (monopropellants), two liquids that spontaneously react on contact (hypergolic propellants), two liquids that must be ignited to react, a solid combination of one or more fuels with one or more oxidizers (solid fuel), or solid fuel with liquid oxidant (hybrid propellant system). Chemical rockets store a large amount of energy in an easily released form, and can be very dangerous. However, careful design, testing, construction and use minimizes risks.
https://wn.com/History_Of_Rockets
Rocket
From Wikipedia, the free encyclopedia
This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation).
Page semi-protected
A Soyuz-U, at Baikonur cosmodrome's Site 1/5 in Kazakhstan
A rocket is a missile, spacecraft, aircraft or other vehicle that obtains thrust from a rocket engine. Rocket engine exhaust is formed entirely from propellants carried within the rocket before use.[1] Rocket engines work by action and reaction. Rocket engines push rockets forward by expelling their exhaust in the opposite direction at high speed. Rockets rely on momentum, airfoils, auxiliary reaction engines, gimballed thrust, momentum wheels, deflection of the exhaust stream, propellant flow, spin, and/or gravity to help control flight.
Rockets are relatively lightweight and powerful, capable of generating large accelerations and of attaining extremely high speeds with reasonable efficiency. Rockets are not reliant on the atmosphere and work very well in space.
Rockets for military and recreational uses date back to at least 13th century China.[2] Significant scientific, interplanetary and industrial use did not occur until the 20th century, when rocketry was the enabling technology for the Space Age, including setting foot on the moon. Rockets are now used for fireworks, weaponry, ejection seats, launch vehicles for artificial satellites, human spaceflight, and space exploration.
Chemical rockets are the most common type of high power rocket, typically creating a high speed exhaust by the combustion of fuel with an oxidizer. The stored propellant can be a simple pressurized gas or a single liquid that disassociates in the presence of a catalyst (monopropellants), two liquids that spontaneously react on contact (hypergolic propellants), two liquids that must be ignited to react, a solid combination of one or more fuels with one or more oxidizers (solid fuel), or solid fuel with liquid oxidant (hybrid propellant system). Chemical rockets store a large amount of energy in an easily released form, and can be very dangerous. However, careful design, testing, construction and use minimizes risks.
- published: 29 Jan 2015
- views: 396
0:30
Unknown Facts about Megalodon Shark #shorts #shark #viral
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Megalodon
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For other uses, see Megalodon (disambiguation).
"Giant white shark" redirects here. F...
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Megalodon
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For other uses, see Megalodon (disambiguation).
"Giant white shark" redirects here. For its long-thought relative, and species of mackerel shark, see Great white shark.
Megalodon (Otodus megalodon),[6][7][8] meaning "big tooth", is an extinct species of mackerel shark that lived approximately 23 to 3.6 million years ago (Mya), during the Early Miocene to the Pliocene.[9] It was formerly thought to be a member of the family Lamnidae and a close relative of the great white shark (Carcharodon carcharias). However, it is now classified into the extinct family Otodontidae, which diverged from the great white shark during the Early Cretaceous. Its genus placement is still debated, authors placing it in either Carcharocles, Megaselachus, Otodus, or Procarcharodon. This is because transitional fossils have been found showing that megalodon is the final chronospecies of a lineage of giant sharks originally of the genus Otodus which evolved during the Paleocene.
Megalodon
Temporal range: Early Miocene–Early Pliocene, c. 23–3.6 Ma
PreꞒꞒOSDCPTJKPgN
Large black model of shark jaws with two visible rows of teeth, suspended by wires inside a room.
Model of megalodon jaws at the American Museum of Natural History
Scientific classificationedit
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Superorder:
Selachimorpha
Order:
Lamniformes
Family:
†Otodontidae
Genus:
†Otodus
Species:
†O. megalodon
Binomial name
†Otodus megalodon
(Agassiz, 1843)[1]
Synonyms[2][3][4][5][6]
List of synonyms
Genus Carcharias
C. giganteus
C. grosseserratus
C. incidens
C. macrodon
C. megalodon
C. mexicanus
C. polygurus
C. polygyrus
C. productus
C. (Prionodon) incidens
Genus Carcharocles
C. subauriculatus
C. megalodon
C. megalodon megalodon
C. productus
Genus Carcharodon
C. arcuatus
C. branneri
C. brevis
C. costae
C. crassidens
C. crassirhadix
C. crassus
C. gibbesi
C. gigas
C. helveticus
C. humilis
C. intermedius
C. latissimus
C. leviathan
C. megalodon
C. megalodon indica
C. megalodon megalodon
C. megalodon polygyra
C. megalodon productus
C. megalodon siculus
C. megalodon yamanarii
C. morricei
C. polygurus
C. polygyrus
C. productus
C. quenstedti
C. rectidens
C. rectideus
C. semiserratus
C. subauriculatus
C. tumidissimus
C. turicensis
Genus Megaselachus
M. arcuatus
M. auriculatus falciformis
M. branneri
M. brevis
M. crassidens
M. crassirhadix
M. crassus
M. gigas
M. heterodon
M. humilis
M. incidens
M. leviathan
M. megalodon
M. megalodon indicus
M. polygyrus
M. productus
M. rectidens
M. semiserratus
M. subauriculatus
Genus Procarcharodon
P. megalodon
P. megalodon megalodon
Genus Otodus
O. (Megaselachus) megalodon
Genus Selache
S. manzonii
While regarded as one of the largest and most powerful predators to have ever lived, megalodon is only known from fragmentary remains, and its appearance and maximum size are uncertain. Scientists differ on whether it would have more closely resembled a stockier version of the great white shark, the whale shark (Rhincodon typus), the basking shark (Cetorhinus maximus) or the sand tiger shark (Carcharias taurus). Most estimates of megalodon's size extrapolate from teeth, with maximum length estimates up to 14–20.3 meters (46–67 ft)[7][8][10] and average length estimates of 10.5 meters (34 ft).[11][12] Estimates suggest their large jaws could exert a bite force of up to 108,500 to 182,200 newtons (24,400 to 41,000 lbf).[13] Their teeth were thick and robust, built for grabbing prey and breaking bone.
Megalodon probably had a major impact on the structure of marine communities. The fossil record indicates that it had a cosmopolitan distribution. It probably targeted large prey, such as whales, seals and sea turtles. Juveniles inhabited warm coastal waters and fed on fish and small whales. Unlike the great white, which attacks prey from the soft underside, megalodon probably used its strong jaws to break through the chest cavity and puncture the heart and lungs of its prey.
The animal faced competition from whale-eating cetaceans, such as Livyatan and other macroraptorial sperm whales and possibly smaller ancestral killer whales. As the shark preferred warmer waters, it is thought that oceanic cooling associated with the onset of the ice ages, coupled with the lowering of sea levels and resulting loss of suitable nursery areas, may have also contributed to its decline. A reduction in the diversity of baleen whales and a shift in their distribution toward polar regions may have reduced megalodon's primary food source. The shark's extinction coincides with a gigantism trend in baleen whales.
Taxonom
Biology
Paleobiology
Extinction
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For other uses, see Megalodon (disambiguation).
"Giant white shark" redirects here. For its long-thought relative, and species of mackerel shark, see Great white shark.
Megalodon (Otodus megalodon),[6][7][8] meaning "big tooth", is an extinct species of mackerel shark that lived approximately 23 to 3.6 million years ago (Mya), during the Early Miocene to the Pliocene.[9] It was formerly thought to be a member of the family Lamnidae and a close relative of the great white shark (Carcharodon carcharias). However, it is now classified into the extinct family Otodontidae, which diverged from the great white shark during the Early Cretaceous. Its genus placement is still debated, authors placing it in either Carcharocles, Megaselachus, Otodus, or Procarcharodon. This is because transitional fossils have been found showing that megalodon is the final chronospecies of a lineage of giant sharks originally of the genus Otodus which evolved during the Paleocene.
Megalodon
Temporal range: Early Miocene–Early Pliocene, c. 23–3.6 Ma
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Large black model of shark jaws with two visible rows of teeth, suspended by wires inside a room.
Model of megalodon jaws at the American Museum of Natural History
Scientific classificationedit
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Superorder:
Selachimorpha
Order:
Lamniformes
Family:
†Otodontidae
Genus:
†Otodus
Species:
†O. megalodon
Binomial name
†Otodus megalodon
(Agassiz, 1843)[1]
Synonyms[2][3][4][5][6]
List of synonyms
Genus Carcharias
C. giganteus
C. grosseserratus
C. incidens
C. macrodon
C. megalodon
C. mexicanus
C. polygurus
C. polygyrus
C. productus
C. (Prionodon) incidens
Genus Carcharocles
C. subauriculatus
C. megalodon
C. megalodon megalodon
C. productus
Genus Carcharodon
C. arcuatus
C. branneri
C. brevis
C. costae
C. crassidens
C. crassirhadix
C. crassus
C. gibbesi
C. gigas
C. helveticus
C. humilis
C. intermedius
C. latissimus
C. leviathan
C. megalodon
C. megalodon indica
C. megalodon megalodon
C. megalodon polygyra
C. megalodon productus
C. megalodon siculus
C. megalodon yamanarii
C. morricei
C. polygurus
C. polygyrus
C. productus
C. quenstedti
C. rectidens
C. rectideus
C. semiserratus
C. subauriculatus
C. tumidissimus
C. turicensis
Genus Megaselachus
M. arcuatus
M. auriculatus falciformis
M. branneri
M. brevis
M. crassidens
M. crassirhadix
M. crassus
M. gigas
M. heterodon
M. humilis
M. incidens
M. leviathan
M. megalodon
M. megalodon indicus
M. polygyrus
M. productus
M. rectidens
M. semiserratus
M. subauriculatus
Genus Procarcharodon
P. megalodon
P. megalodon megalodon
Genus Otodus
O. (Megaselachus) megalodon
Genus Selache
S. manzonii
While regarded as one of the largest and most powerful predators to have ever lived, megalodon is only known from fragmentary remains, and its appearance and maximum size are uncertain. Scientists differ on whether it would have more closely resembled a stockier version of the great white shark, the whale shark (Rhincodon typus), the basking shark (Cetorhinus maximus) or the sand tiger shark (Carcharias taurus). Most estimates of megalodon's size extrapolate from teeth, with maximum length estimates up to 14–20.3 meters (46–67 ft)[7][8][10] and average length estimates of 10.5 meters (34 ft).[11][12] Estimates suggest their large jaws could exert a bite force of up to 108,500 to 182,200 newtons (24,400 to 41,000 lbf).[13] Their teeth were thick and robust, built for grabbing prey and breaking bone.
Megalodon probably had a major impact on the structure of marine communities. The fossil record indicates that it had a cosmopolitan distribution. It probably targeted large prey, such as whales, seals and sea turtles. Juveniles inhabited warm coastal waters and fed on fish and small whales. Unlike the great white, which attacks prey from the soft underside, megalodon probably used its strong jaws to break through the chest cavity and puncture the heart and lungs of its prey.
The animal faced competition from whale-eating cetaceans, such as Livyatan and other macroraptorial sperm whales and possibly smaller ancestral killer whales. As the shark preferred warmer waters, it is thought that oceanic cooling associated with the onset of the ice ages, coupled with the lowering of sea levels and resulting loss of suitable nursery areas, may have also contributed to its decline. A reduction in the diversity of baleen whales and a shift in their distribution toward polar regions may have reduced megalodon's primary food source. The shark's extinction coincides with a gigantism trend in baleen whales.
Taxonom
Biology
Paleobiology
Extinction
https://youtube.com/shorts/pOhai32bDMg?feature=share
#einteresting facts megalodon shark #amazing facts #interesting facts in hindi amazing facts in hindi #interesting facts #interesting facts in hindi #interesting facts you never know
- published: 19 Jan 2022
- views: 996
11:42
What's The Difference Between Hurricanes Cyclones & Typhoons?
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SOURCES & FURTHER READING
Differences Between Hurricane Cyclones and Typhoons: https://timesofindia.indiatimes.com/what-is-the-difference-between-cyclone-hurricane-tornado-and-twister/articleshow/1317404.cms
Hurricanes, Typhoons, and Cyclones: https://ocean.si.edu/planet-ocean/waves-storms-tsunamis/hurricanes-typhoons-and-cyclones
Tropical Storms On The BBC:https://www.bbc.co.uk/newsround/24879162
Hurricane Etymology: https://www.thoughtco.com/where-does-the-word-hurricane-come-from-3443911
Cyclone Etymology: https://www.etymonline.com/word/cyclone
How Do Hurricanes Form?: https://scijinks.gov/hurricane/
Typhoon Etymology: https://www.etymonline.com/word/typhoon
Tornado 101: https://www.nssl.noaa.gov/education/svrwx101/tornadoes/
Tornado Etymology: https://www.etymonline.com/word/tornado
https://wn.com/What's_The_Difference_Between_Hurricanes_Cyclones_Typhoons
HELP SUPPORT NAME EXPLAIN ON PATREON: https://www.patreon.com/nameexplain
TIKTOK: https://www.tiktok.com/@nameexplain
INSTAGRAM: https://www.instagram.com/nameexplainyt/
FACEBOOK: https://www.facebook.com/groups/248812236869988
TWITTER: https://twitter.com/NameExplainYT
BOOK: http://bit.ly/originofnames
MERCH: https://teespring.com/stores/name-explain
Thank you to all my Patrons for supporting the channel!
SOURCES & FURTHER READING
Differences Between Hurricane Cyclones and Typhoons: https://timesofindia.indiatimes.com/what-is-the-difference-between-cyclone-hurricane-tornado-and-twister/articleshow/1317404.cms
Hurricanes, Typhoons, and Cyclones: https://ocean.si.edu/planet-ocean/waves-storms-tsunamis/hurricanes-typhoons-and-cyclones
Tropical Storms On The BBC:https://www.bbc.co.uk/newsround/24879162
Hurricane Etymology: https://www.thoughtco.com/where-does-the-word-hurricane-come-from-3443911
Cyclone Etymology: https://www.etymonline.com/word/cyclone
How Do Hurricanes Form?: https://scijinks.gov/hurricane/
Typhoon Etymology: https://www.etymonline.com/word/typhoon
Tornado 101: https://www.nssl.noaa.gov/education/svrwx101/tornadoes/
Tornado Etymology: https://www.etymonline.com/word/tornado
- published: 30 Mar 2022
- views: 28746
12:05
Internet Working explained with Frontend and Backend
Hey guys in this video I am #explaining how #internet actually works and what is frontend and backend.
You should watch this before learning web #development or...
Hey guys in this video I am #explaining how #internet actually works and what is frontend and backend.
You should watch this before learning web #development or any software development
I have also explained little about HTML, CSS and Javascript
Images used are from -
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https://wn.com/Internet_Working_Explained_With_Frontend_And_Backend
Hey guys in this video I am #explaining how #internet actually works and what is frontend and backend.
You should watch this before learning web #development or any software development
I have also explained little about HTML, CSS and Javascript
Images used are from -
Pexels.com
Flaticon.com
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Background Music 🎶
🙏Thanks For Watching 🙏
😵Don't forget to Like 👍, Share ✌🏻& Subscribe👆🏽
Please Support Me 😍
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- published: 17 Sep 2019
- views: 319
0:24
तितली /Buterfly
तितली butterfly
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Butterfly
For other uses, see Butterfly (disambiguation).
Butterflies are insects in the macrolepidopteran cla...
तितली butterfly
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Butterfly
For other uses, see Butterfly (disambiguation).
Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises the large superfamilyPapilionoidea, which contains at least one former group, the skippers (formerly the superfamily "Hesperioidea") and the most recent analyses suggest it also contains the moth-butterflies (formerly the superfamily "Hedyloidea"). Butterfly fossils date to the Paleocene, which was about 56 million years ago.
Butterflies
Temporal range: Palaeocene-Present, 56–0 Ma
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Papilio machaonScientific classificationKingdom:AnimaliaClade:EuarthropodaClass:InsectaOrder:LepidopteraSuborder:RhopaloceraSubgroupsSuperfamily Hedyloidea:HedylidaeSuperfamily Papilionoidea:HesperiidaeLycaenidaeNymphalidaePapilionidaePieridaeRiodinidae
Butterflies have the typical four-stage insect life cycle. Winged adults lay eggs on the food plant on which their larvae, known as caterpillars, will feed. The caterpillars grow, sometimes very rapidly, and when fully developed, pupate in a chrysalis. When metamorphosis is complete, the pupal skin splits, the adult insect climbs out, and after its wings have expanded and dried, it flies off. Some butterflies, especially in the tropics, have several generations in a year, while others have a single generation, and a few in cold locations may take several years to pass through their entire life cycle.
Butterflies are often polymorphic, and many species make use of camouflage, mimicry and aposematism to evade their predators. Some, like the monarchand the painted lady, migrate over long distances. Many butterflies are attacked by parasites or parasitoids, including wasps, protozoans, flies, and other invertebrates, or are preyed upon by other organisms. Some species are pests because in their larval stages they can damage domestic crops or trees; other species are agents of pollinationof some plants. Larvae of a few butterflies (e.g., harvesters) eat harmful insects, and a few are predators of ants, while others live as mutualists in association with ants. Culturally, butterflies are a popular motif in the visual and literary arts.
Etymology
Taxonomy and phylogeny
Biology
In culture
References
External links
https://wn.com/तितली_Buterfly
तितली butterfly
Please subscribe my Chanel
Butterfly
For other uses, see Butterfly (disambiguation).
Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises the large superfamilyPapilionoidea, which contains at least one former group, the skippers (formerly the superfamily "Hesperioidea") and the most recent analyses suggest it also contains the moth-butterflies (formerly the superfamily "Hedyloidea"). Butterfly fossils date to the Paleocene, which was about 56 million years ago.
Butterflies
Temporal range: Palaeocene-Present, 56–0 Ma
PreЄ
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O
S
D
C
P
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J
K
Pg
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Papilio machaonScientific classificationKingdom:AnimaliaClade:EuarthropodaClass:InsectaOrder:LepidopteraSuborder:RhopaloceraSubgroupsSuperfamily Hedyloidea:HedylidaeSuperfamily Papilionoidea:HesperiidaeLycaenidaeNymphalidaePapilionidaePieridaeRiodinidae
Butterflies have the typical four-stage insect life cycle. Winged adults lay eggs on the food plant on which their larvae, known as caterpillars, will feed. The caterpillars grow, sometimes very rapidly, and when fully developed, pupate in a chrysalis. When metamorphosis is complete, the pupal skin splits, the adult insect climbs out, and after its wings have expanded and dried, it flies off. Some butterflies, especially in the tropics, have several generations in a year, while others have a single generation, and a few in cold locations may take several years to pass through their entire life cycle.
Butterflies are often polymorphic, and many species make use of camouflage, mimicry and aposematism to evade their predators. Some, like the monarchand the painted lady, migrate over long distances. Many butterflies are attacked by parasites or parasitoids, including wasps, protozoans, flies, and other invertebrates, or are preyed upon by other organisms. Some species are pests because in their larval stages they can damage domestic crops or trees; other species are agents of pollinationof some plants. Larvae of a few butterflies (e.g., harvesters) eat harmful insects, and a few are predators of ants, while others live as mutualists in association with ants. Culturally, butterflies are a popular motif in the visual and literary arts.
Etymology
Taxonomy and phylogeny
Biology
In culture
References
External links
- published: 22 Apr 2018
- views: 17