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Ovoviviparity | What is OVOVIVIPAROUS?
OVOVIVIPARITY. What is Ovoviviparous?
Oviparous viviparous ovoviviparous animals
Oviparous animals - reproduce by laying eggs (birds and most reptiles)
Viviparous animals - birth live young (most mammals)
Ovoviviparous animals – lay eggs internally, once hatched the animals feed internally and young are born live.
https://professorkay.com/10-amazingly-fascinating-ovoviviparous-animals-and-their-features-ovoviviparity/
https://www.mynerdyprof.com/post/top-10-examples-of-ovoviviparous-animals-pictures-and-video-ovoviviparity
mynerdyprof.com
[email protected]
#mynerdyprof
#mynerdyprofessor
#science class
#ovoviviparous
#viviparous
#oviparous
Ovoviviparity, Ovoviviparous, What is Ovoviviparous, Examples of ovoviviparous, Ovoviviparous animals, what is ovoviviparous animal
https:/...
published: 09 May 2022
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Word of the Day - Ovoviviparous
In this video, we're introducing you to a word you might not be familiar with - ovoviviparous. It's an interesting word to describe an even more interesting way in which some animals give birth. Check it out!
published: 23 Aug 2016
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Oviparous Viviparous and Ovoviviparous Animals | Reproduction
Oviparous viviparous and ovoviviparous animals are explained in this video lesson.
#OviparousViviparousandOvoviviparousAnimals #Oviparous #Viviparous #Ovoviviparous #reproduction #reproductioninplants #ahmadcoaching #biology
Watch these video in Urdu/Hindi on Ahmad Coaching in urdu
https://www.youtube.com/channel/UCiCSHv34qParuEkLbDhLgDQ
To get more resources and worksheets related to this topic visit the link below.
https://www.ahmadcoaching.com
If you liked this video, give it a big thumbs up, subscribe to our channel and click on the bell icon to turn on notifications for updates.
We aim to make biology easy and enjoyable for you. Thank you!!!
If you want to learn any topic or have any suggestion..write it down in the comment box.
published: 02 Jun 2022
-
Oviparity, ovoviviparity, and vivoparity through an evolutionary lens (from Livestream Q&A #117)
Clip taken from DarkHorse Podcast Livestream #117 (originally streamed live on March 05, 2022): https://youtu.be/sWV9KC7IUNA
https://open.spotify.com/episode/0IuhrTpCrSlBmBTz7USc5J
Q&A: https://youtu.be/g0UkpC4B4_A
https://open.spotify.com/episode/1HEkfOSlprmCLpvUYp6M3D
What is this a clip from?
In this 117th in a series of live discussions with Bret Weinstein and Heather Heying (both PhDs in Biology), discuss the state of the world though an evolutionary lens. Find more from us on Bret’s website (https://bretweinstein.net) or Heather’s website (http://heatherheying.com).
Heather’s newsletter, Natural Selections (subscribe to get free weekly essays in your inbox): https://naturalselections.substack.com
A Hunter-Gatherer’s Guide to the 21st Century is now available: https://huntergath...
published: 12 Mar 2022
-
REPRODUCTION IN ANIMALS 🐶🐦 SEXUAL and ASEXUAL 🥚🤰🏻 OVIPAROUS, VIVIPAROUS, OVOVIPAROUS
Educational video for children that talks about classifying animals according to how they reproduce. As you may already know, living beings have offspring similar to themselves through reproduction. There are two types of reproduction: asexual and sexual reproduction. First, we have asexual reproduction. This type of reproduction occurs in very few animal species. It involves only one parent that does not have specialized reproductive organs. When they become adults, organisms that reproduce asexually can produce identical copies of themselves. Some examples are jellyfish or sea sponges. Alternatively, there is sexual reproduction. Sexual reproduction is the most common in animals and involves two parents: a male and a female. This means that the offspring will resemble both. We classify a...
published: 05 Sep 2023
-
Oviparous, viviparous and ovoviviparous animals
Oviparous- viviparous and ovoviviparous-- Created using Powtoon -- Free sign up at http://www.powtoon.com/youtube/ -- Create animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.
published: 18 May 2020
-
OVOVIVIPAROUS ANIMALS and ovoviviparity #shorts
7 OVOVIVIPAROUS ANIMALS. Amazing animals that exhibit ovoviviparity. The rare ovoviviparous animals exhibit a combination viviparous and oviparous. Unlike oviparous animals, which lay eggs and then leave them to hatch on their own, ovoviviparous animals lay eggs internally. The eggs stay inside the parent’s body until they are ready to hatch. Once hatched, the hatchlings feed internally are born live. While rare, ovoviviparous animals are found all over the world. Let’s look at some examples…
7. Great White Sharks
6. Manta Rays
5. Seahorse
4. Anaconda
3. Rattlesnakes
2. Carrion Flies
1. Jackson's chameleon
#shorts
#sciencefacts
#ovoviviparous
#animals
#mynerdyprof
#shorts
published: 27 Mar 2023
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Amazing Facts | Ovoviviparous Animals: Life in the Womb
Amazing Facts | Ovoviviparous Animals: Life in the Womb
Hello animal friends. Have you ever been curious about how life inside the womb of these animals that produce eggs is similar to an egg, but with some interesting surprises? Welcome to a scientific adventure that unravels the mystery of reproduction in ovoviviparous animals. In this video, we'll take you through the fascinating world of sharks, seahorses, lizards, rattlesnakes, chameleons, platypuses, stingrays and even scorpions, all with incredible methods of reproduction.
You will be fascinated by the unique stories of each of these animals, how eggs develop inside their bodies, and how their young emerge into the world. We will discuss the paternal care role of seahorses, the adaptations of sharks in the harsh undersea, as well...
published: 09 Sep 2023
-
Shark Reproduction | SHARK ACADEMY
In this great educational segment, Jonathan explores the reproductive strategies of sharks, explaining how some sharks lay eggs (oviparity), produce live young (viviparity) or produce eggs that develop internally (ovoviviparity).
**********************************************************************
If you like Jonathan Bird's Blue World, don't forget to subscribe!
You can buy some Blue World T-shirts & Swag!
http://www.blueworldtv.com/shop
You can join us on Facebook!
https://www.facebook.com/BlueWorldTV
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Are they born from eggs or live born? Or both? How do sharks reproduce? I’m Jonathan Bird and this is shark acad...
published: 01 May 2015
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The three different ways mammals give birth - Kate Slabosky
View full lesson: http://ed.ted.com/lessons/the-three-different-ways-mammals-give-birth-kate-slabosky
All mammals share certain characteristics, like warm blood and backbones. But despite their similarities, these creatures also have many biological differences — and one of the most remarkable differences is how they give birth. Kate Slabosky details the placental, marsupial, and monotreme methods of giving birth.
Lesson by Kate Slabosky, animation by Compote Collective.
published: 17 Apr 2017
7:17
Ovoviviparity | What is OVOVIVIPAROUS?
OVOVIVIPARITY. What is Ovoviviparous?
Oviparous viviparous ovoviviparous animals
Oviparous animals - reproduce by laying eggs (birds and most reptiles)
Vivipa...
OVOVIVIPARITY. What is Ovoviviparous?
Oviparous viviparous ovoviviparous animals
Oviparous animals - reproduce by laying eggs (birds and most reptiles)
Viviparous animals - birth live young (most mammals)
Ovoviviparous animals – lay eggs internally, once hatched the animals feed internally and young are born live.
https://professorkay.com/10-amazingly-fascinating-ovoviviparous-animals-and-their-features-ovoviviparity/
https://www.mynerdyprof.com/post/top-10-examples-of-ovoviviparous-animals-pictures-and-video-ovoviviparity
mynerdyprof.com
[email protected]
#mynerdyprof
#mynerdyprofessor
#science class
#ovoviviparous
#viviparous
#oviparous
Ovoviviparity, Ovoviviparous, What is Ovoviviparous, Examples of ovoviviparous, Ovoviviparous animals, what is ovoviviparous animal
https://youtu.be/-LvxDql0CCE
https://wn.com/Ovoviviparity_|_What_Is_Ovoviviparous
OVOVIVIPARITY. What is Ovoviviparous?
Oviparous viviparous ovoviviparous animals
Oviparous animals - reproduce by laying eggs (birds and most reptiles)
Viviparous animals - birth live young (most mammals)
Ovoviviparous animals – lay eggs internally, once hatched the animals feed internally and young are born live.
https://professorkay.com/10-amazingly-fascinating-ovoviviparous-animals-and-their-features-ovoviviparity/
https://www.mynerdyprof.com/post/top-10-examples-of-ovoviviparous-animals-pictures-and-video-ovoviviparity
mynerdyprof.com
[email protected]
#mynerdyprof
#mynerdyprofessor
#science class
#ovoviviparous
#viviparous
#oviparous
Ovoviviparity, Ovoviviparous, What is Ovoviviparous, Examples of ovoviviparous, Ovoviviparous animals, what is ovoviviparous animal
https://youtu.be/-LvxDql0CCE
- published: 09 May 2022
- views: 4107
0:53
Word of the Day - Ovoviviparous
In this video, we're introducing you to a word you might not be familiar with - ovoviviparous. It's an interesting word to describe an even more interesting way...
In this video, we're introducing you to a word you might not be familiar with - ovoviviparous. It's an interesting word to describe an even more interesting way in which some animals give birth. Check it out!
https://wn.com/Word_Of_The_Day_Ovoviviparous
In this video, we're introducing you to a word you might not be familiar with - ovoviviparous. It's an interesting word to describe an even more interesting way in which some animals give birth. Check it out!
- published: 23 Aug 2016
- views: 30575
3:26
Oviparous Viviparous and Ovoviviparous Animals | Reproduction
Oviparous viviparous and ovoviviparous animals are explained in this video lesson.
#OviparousViviparousandOvoviviparousAnimals #Oviparous #Viviparous #Ovovivip...
Oviparous viviparous and ovoviviparous animals are explained in this video lesson.
#OviparousViviparousandOvoviviparousAnimals #Oviparous #Viviparous #Ovoviviparous #reproduction #reproductioninplants #ahmadcoaching #biology
Watch these video in Urdu/Hindi on Ahmad Coaching in urdu
https://www.youtube.com/channel/UCiCSHv34qParuEkLbDhLgDQ
To get more resources and worksheets related to this topic visit the link below.
https://www.ahmadcoaching.com
If you liked this video, give it a big thumbs up, subscribe to our channel and click on the bell icon to turn on notifications for updates.
We aim to make biology easy and enjoyable for you. Thank you!!!
If you want to learn any topic or have any suggestion..write it down in the comment box.
https://wn.com/Oviparous_Viviparous_And_Ovoviviparous_Animals_|_Reproduction
Oviparous viviparous and ovoviviparous animals are explained in this video lesson.
#OviparousViviparousandOvoviviparousAnimals #Oviparous #Viviparous #Ovoviviparous #reproduction #reproductioninplants #ahmadcoaching #biology
Watch these video in Urdu/Hindi on Ahmad Coaching in urdu
https://www.youtube.com/channel/UCiCSHv34qParuEkLbDhLgDQ
To get more resources and worksheets related to this topic visit the link below.
https://www.ahmadcoaching.com
If you liked this video, give it a big thumbs up, subscribe to our channel and click on the bell icon to turn on notifications for updates.
We aim to make biology easy and enjoyable for you. Thank you!!!
If you want to learn any topic or have any suggestion..write it down in the comment box.
- published: 02 Jun 2022
- views: 19948
6:49
Oviparity, ovoviviparity, and vivoparity through an evolutionary lens (from Livestream Q&A #117)
Clip taken from DarkHorse Podcast Livestream #117 (originally streamed live on March 05, 2022): https://youtu.be/sWV9KC7IUNA
https://open.spotify.com/episode/0I...
Clip taken from DarkHorse Podcast Livestream #117 (originally streamed live on March 05, 2022): https://youtu.be/sWV9KC7IUNA
https://open.spotify.com/episode/0IuhrTpCrSlBmBTz7USc5J
Q&A: https://youtu.be/g0UkpC4B4_A
https://open.spotify.com/episode/1HEkfOSlprmCLpvUYp6M3D
What is this a clip from?
In this 117th in a series of live discussions with Bret Weinstein and Heather Heying (both PhDs in Biology), discuss the state of the world though an evolutionary lens. Find more from us on Bret’s website (https://bretweinstein.net) or Heather’s website (http://heatherheying.com).
Heather’s newsletter, Natural Selections (subscribe to get free weekly essays in your inbox): https://naturalselections.substack.com
A Hunter-Gatherer’s Guide to the 21st Century is now available: https://huntergatherersguide.com/
DarkHorse merchandise now available at: http://store.darkhorsepodcast.org/
Become a member of the DarkHorse Livestreams, and get access to an additional Q&A livestream every month. Join at Heather's Patreon.
https://www.patreon.com/heatherheying
Like this content? Subscribe to the channel, like this video, follow us on twitter (@BretWeinstein, @HeatherEHeying), and consider helping us out by contributing to either of our Patreons or Bret’s Paypal.
https://www.patreon.com/bretweinstein
Theme Music: Thank you to Martin Molin of Wintergatan for providing us the rights to use their excellent music.
https://wn.com/Oviparity,_Ovoviviparity,_And_Vivoparity_Through_An_Evolutionary_Lens_(From_Livestream_Q_A_117)
Clip taken from DarkHorse Podcast Livestream #117 (originally streamed live on March 05, 2022): https://youtu.be/sWV9KC7IUNA
https://open.spotify.com/episode/0IuhrTpCrSlBmBTz7USc5J
Q&A: https://youtu.be/g0UkpC4B4_A
https://open.spotify.com/episode/1HEkfOSlprmCLpvUYp6M3D
What is this a clip from?
In this 117th in a series of live discussions with Bret Weinstein and Heather Heying (both PhDs in Biology), discuss the state of the world though an evolutionary lens. Find more from us on Bret’s website (https://bretweinstein.net) or Heather’s website (http://heatherheying.com).
Heather’s newsletter, Natural Selections (subscribe to get free weekly essays in your inbox): https://naturalselections.substack.com
A Hunter-Gatherer’s Guide to the 21st Century is now available: https://huntergatherersguide.com/
DarkHorse merchandise now available at: http://store.darkhorsepodcast.org/
Become a member of the DarkHorse Livestreams, and get access to an additional Q&A livestream every month. Join at Heather's Patreon.
https://www.patreon.com/heatherheying
Like this content? Subscribe to the channel, like this video, follow us on twitter (@BretWeinstein, @HeatherEHeying), and consider helping us out by contributing to either of our Patreons or Bret’s Paypal.
https://www.patreon.com/bretweinstein
Theme Music: Thank you to Martin Molin of Wintergatan for providing us the rights to use their excellent music.
- published: 12 Mar 2022
- views: 11364
4:37
REPRODUCTION IN ANIMALS 🐶🐦 SEXUAL and ASEXUAL 🥚🤰🏻 OVIPAROUS, VIVIPAROUS, OVOVIPAROUS
Educational video for children that talks about classifying animals according to how they reproduce. As you may already know, living beings have offspring simil...
Educational video for children that talks about classifying animals according to how they reproduce. As you may already know, living beings have offspring similar to themselves through reproduction. There are two types of reproduction: asexual and sexual reproduction. First, we have asexual reproduction. This type of reproduction occurs in very few animal species. It involves only one parent that does not have specialized reproductive organs. When they become adults, organisms that reproduce asexually can produce identical copies of themselves. Some examples are jellyfish or sea sponges. Alternatively, there is sexual reproduction. Sexual reproduction is the most common in animals and involves two parents: a male and a female. This means that the offspring will resemble both. We classify animals into three groups according to the type of sexual reproduction they perform: oviparous, viviparous and ovoviviparous.
This video is a very useful and interesting resource for children. It is perfect for teaching classification of animals by reproduction. It is an excellent video for primary education.
Thanks for visiting us! If you want your children to smile and learn, subscribe! :D
If you like our videos, download Smile and Learn now. You’ll discover thousands of activities for children aged 3 to 12 years, all designed by educators. We have hundreds of games, interactive stories and videos in five languages: English, Spanish, Portuguese, Italian, Turkish and French. Try a month for free and start the adventure!
www.smileandlearn.com
https://wn.com/Reproduction_In_Animals_🐶🐦_Sexual_And_Asexual_🥚🤰🏻_Oviparous,_Viviparous,_Ovoviparous
Educational video for children that talks about classifying animals according to how they reproduce. As you may already know, living beings have offspring similar to themselves through reproduction. There are two types of reproduction: asexual and sexual reproduction. First, we have asexual reproduction. This type of reproduction occurs in very few animal species. It involves only one parent that does not have specialized reproductive organs. When they become adults, organisms that reproduce asexually can produce identical copies of themselves. Some examples are jellyfish or sea sponges. Alternatively, there is sexual reproduction. Sexual reproduction is the most common in animals and involves two parents: a male and a female. This means that the offspring will resemble both. We classify animals into three groups according to the type of sexual reproduction they perform: oviparous, viviparous and ovoviviparous.
This video is a very useful and interesting resource for children. It is perfect for teaching classification of animals by reproduction. It is an excellent video for primary education.
Thanks for visiting us! If you want your children to smile and learn, subscribe! :D
If you like our videos, download Smile and Learn now. You’ll discover thousands of activities for children aged 3 to 12 years, all designed by educators. We have hundreds of games, interactive stories and videos in five languages: English, Spanish, Portuguese, Italian, Turkish and French. Try a month for free and start the adventure!
www.smileandlearn.com
- published: 05 Sep 2023
- views: 517749
2:53
Oviparous, viviparous and ovoviviparous animals
Oviparous- viviparous and ovoviviparous-- Created using Powtoon -- Free sign up at http://www.powtoon.com/youtube/ -- Create animated videos and animated presen...
Oviparous- viviparous and ovoviviparous-- Created using Powtoon -- Free sign up at http://www.powtoon.com/youtube/ -- Create animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.
https://wn.com/Oviparous,_Viviparous_And_Ovoviviparous_Animals
Oviparous- viviparous and ovoviviparous-- Created using Powtoon -- Free sign up at http://www.powtoon.com/youtube/ -- Create animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.
- published: 18 May 2020
- views: 88228
0:42
OVOVIVIPAROUS ANIMALS and ovoviviparity #shorts
7 OVOVIVIPAROUS ANIMALS. Amazing animals that exhibit ovoviviparity. The rare ovoviviparous animals exhibit a combination viviparous and oviparous. Unlike ovipa...
7 OVOVIVIPAROUS ANIMALS. Amazing animals that exhibit ovoviviparity. The rare ovoviviparous animals exhibit a combination viviparous and oviparous. Unlike oviparous animals, which lay eggs and then leave them to hatch on their own, ovoviviparous animals lay eggs internally. The eggs stay inside the parent’s body until they are ready to hatch. Once hatched, the hatchlings feed internally are born live. While rare, ovoviviparous animals are found all over the world. Let’s look at some examples…
7. Great White Sharks
6. Manta Rays
5. Seahorse
4. Anaconda
3. Rattlesnakes
2. Carrion Flies
1. Jackson's chameleon
#shorts
#sciencefacts
#ovoviviparous
#animals
#mynerdyprof
#shorts
https://wn.com/Ovoviviparous_Animals_And_Ovoviviparity_Shorts
7 OVOVIVIPAROUS ANIMALS. Amazing animals that exhibit ovoviviparity. The rare ovoviviparous animals exhibit a combination viviparous and oviparous. Unlike oviparous animals, which lay eggs and then leave them to hatch on their own, ovoviviparous animals lay eggs internally. The eggs stay inside the parent’s body until they are ready to hatch. Once hatched, the hatchlings feed internally are born live. While rare, ovoviviparous animals are found all over the world. Let’s look at some examples…
7. Great White Sharks
6. Manta Rays
5. Seahorse
4. Anaconda
3. Rattlesnakes
2. Carrion Flies
1. Jackson's chameleon
#shorts
#sciencefacts
#ovoviviparous
#animals
#mynerdyprof
#shorts
- published: 27 Mar 2023
- views: 4431
4:05
Amazing Facts | Ovoviviparous Animals: Life in the Womb
Amazing Facts | Ovoviviparous Animals: Life in the Womb
Hello animal friends. Have you ever been curious about how life inside the womb of these animals that ...
Amazing Facts | Ovoviviparous Animals: Life in the Womb
Hello animal friends. Have you ever been curious about how life inside the womb of these animals that produce eggs is similar to an egg, but with some interesting surprises? Welcome to a scientific adventure that unravels the mystery of reproduction in ovoviviparous animals. In this video, we'll take you through the fascinating world of sharks, seahorses, lizards, rattlesnakes, chameleons, platypuses, stingrays and even scorpions, all with incredible methods of reproduction.
You will be fascinated by the unique stories of each of these animals, how eggs develop inside their bodies, and how their young emerge into the world. We will discuss the paternal care role of seahorses, the adaptations of sharks in the harsh undersea, as well as the unique strategies of scorpions in the harsh desert. Discover the wonder and complexity of life in the wombs of these animals. Don't miss the opportunity to understand and appreciate the diversity of reproduction in the natural world. So, be sure to like and subscribe for more information about nature's fascinating life!
#animals #facts #amazingfacts #animalfacts #animalslover #amazinganimals #interestingfacts #wildlife #wildlifefacts #seahorses #ovoviviparous #shark #lizard #cameleon #rattlesnake #platypus #stingray #scorpion
https://wn.com/Amazing_Facts_|_Ovoviviparous_Animals_Life_In_The_Womb
Amazing Facts | Ovoviviparous Animals: Life in the Womb
Hello animal friends. Have you ever been curious about how life inside the womb of these animals that produce eggs is similar to an egg, but with some interesting surprises? Welcome to a scientific adventure that unravels the mystery of reproduction in ovoviviparous animals. In this video, we'll take you through the fascinating world of sharks, seahorses, lizards, rattlesnakes, chameleons, platypuses, stingrays and even scorpions, all with incredible methods of reproduction.
You will be fascinated by the unique stories of each of these animals, how eggs develop inside their bodies, and how their young emerge into the world. We will discuss the paternal care role of seahorses, the adaptations of sharks in the harsh undersea, as well as the unique strategies of scorpions in the harsh desert. Discover the wonder and complexity of life in the wombs of these animals. Don't miss the opportunity to understand and appreciate the diversity of reproduction in the natural world. So, be sure to like and subscribe for more information about nature's fascinating life!
#animals #facts #amazingfacts #animalfacts #animalslover #amazinganimals #interestingfacts #wildlife #wildlifefacts #seahorses #ovoviviparous #shark #lizard #cameleon #rattlesnake #platypus #stingray #scorpion
- published: 09 Sep 2023
- views: 791
3:51
Shark Reproduction | SHARK ACADEMY
In this great educational segment, Jonathan explores the reproductive strategies of sharks, explaining how some sharks lay eggs (oviparity), produce live young ...
In this great educational segment, Jonathan explores the reproductive strategies of sharks, explaining how some sharks lay eggs (oviparity), produce live young (viviparity) or produce eggs that develop internally (ovoviviparity).
**********************************************************************
If you like Jonathan Bird's Blue World, don't forget to subscribe!
You can buy some Blue World T-shirts & Swag!
http://www.blueworldtv.com/shop
You can join us on Facebook!
https://www.facebook.com/BlueWorldTV
Twitter
https://twitter.com/BlueWorld_TV
Instagram
@blueworldtv
Web:
http://www.blueworldTV.com
**********************************************************************
Are they born from eggs or live born? Or both? How do sharks reproduce? I’m Jonathan Bird and this is shark academy!
Unlike fish, which produce large amounts of eggs, most of which never reach maturity, sharks produce far fewer, but larger, offspring, and they have a much better chance of reaching adulthood.
Sharks can reproduce in several ways. Many small sharks, like the horn shark, the swell shark and cat sharks actually lay eggs on the bottom. The baby shark develops in there, living off a yolk sac filled with nutrients. The baby, a miniature version of its parents, is born after a few months to a year of gestation, depending on water temperature and the species. Sharks using this reproductive strategy are called oviparous. Meaning egg-laying.
Other sharks are viviparous. They give birth to live young which develop inside the mother shark, receiving nutrients and oxygen from mom through an umbilical cord, just like humans. Larger sharks like Blue sharks, Bull sharks and Hammerheads use this technique.
The last group of sharks are ovoviparous, (also known as Aplacental Yolk Sac Viviparous). In this system, the mother produces eggs like the oviparous system, but instead of laying her eggs on the bottom, she carries them inside her body until they hatch. When the babies pop out, you might think the shark was viviparous, but the babies had no umbilical cord inside, they lived off a yolk sac.
In the weird category, the Sand Tiger shark has a strange variation on its ovoviviparous reproduction known as intrauterine cannibalism. The mother produces up to 50 pups in each of two uteruses, but the first baby in each uterus that reaches about 4" long eats all its siblings! After 12 months of gestation, the mother then gives birth to a pair of 3 foot long pups! Pups that are well fed!
Because sharks put so much more time, effort and energy into producing a viable offspring than bony fish do, they give birth to far fewer pups. A whale shark produces the most pups of any shark—around 300 at a time—but then again, mom is the size of a bus. The Thresher and Sand Tiger only produce two pups at a time. The Blue shark can produce 135 at a time, which is a lot for a shark not the size of a bus.
Gestation is long too, averaging 9-12 months. Baby Spiny Dogfish take 22 months—almost two years—for their young to develop.
Most sharks take quite a while to become mature enough to reproduce as well. Great Hammerheads take 9 years. Lemon and Bull sharks take 15 years. Spiny Dogfish? 20 years.
So, between the small litters, a long gestation period and long time to reach maturity, sharks just don’t reproduce very quickly. This is the reason they are so vulnerable to overfishing.
If you’re interested in sharks, there are more than 30 Shark Academy episodes to watch! You can also join my underwater adventures on Jonathan Bird’s Blue World!
And don’t ever miss a new episode--subscribe now!
https://wn.com/Shark_Reproduction_|_Shark_Academy
In this great educational segment, Jonathan explores the reproductive strategies of sharks, explaining how some sharks lay eggs (oviparity), produce live young (viviparity) or produce eggs that develop internally (ovoviviparity).
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Are they born from eggs or live born? Or both? How do sharks reproduce? I’m Jonathan Bird and this is shark academy!
Unlike fish, which produce large amounts of eggs, most of which never reach maturity, sharks produce far fewer, but larger, offspring, and they have a much better chance of reaching adulthood.
Sharks can reproduce in several ways. Many small sharks, like the horn shark, the swell shark and cat sharks actually lay eggs on the bottom. The baby shark develops in there, living off a yolk sac filled with nutrients. The baby, a miniature version of its parents, is born after a few months to a year of gestation, depending on water temperature and the species. Sharks using this reproductive strategy are called oviparous. Meaning egg-laying.
Other sharks are viviparous. They give birth to live young which develop inside the mother shark, receiving nutrients and oxygen from mom through an umbilical cord, just like humans. Larger sharks like Blue sharks, Bull sharks and Hammerheads use this technique.
The last group of sharks are ovoviparous, (also known as Aplacental Yolk Sac Viviparous). In this system, the mother produces eggs like the oviparous system, but instead of laying her eggs on the bottom, she carries them inside her body until they hatch. When the babies pop out, you might think the shark was viviparous, but the babies had no umbilical cord inside, they lived off a yolk sac.
In the weird category, the Sand Tiger shark has a strange variation on its ovoviviparous reproduction known as intrauterine cannibalism. The mother produces up to 50 pups in each of two uteruses, but the first baby in each uterus that reaches about 4" long eats all its siblings! After 12 months of gestation, the mother then gives birth to a pair of 3 foot long pups! Pups that are well fed!
Because sharks put so much more time, effort and energy into producing a viable offspring than bony fish do, they give birth to far fewer pups. A whale shark produces the most pups of any shark—around 300 at a time—but then again, mom is the size of a bus. The Thresher and Sand Tiger only produce two pups at a time. The Blue shark can produce 135 at a time, which is a lot for a shark not the size of a bus.
Gestation is long too, averaging 9-12 months. Baby Spiny Dogfish take 22 months—almost two years—for their young to develop.
Most sharks take quite a while to become mature enough to reproduce as well. Great Hammerheads take 9 years. Lemon and Bull sharks take 15 years. Spiny Dogfish? 20 years.
So, between the small litters, a long gestation period and long time to reach maturity, sharks just don’t reproduce very quickly. This is the reason they are so vulnerable to overfishing.
If you’re interested in sharks, there are more than 30 Shark Academy episodes to watch! You can also join my underwater adventures on Jonathan Bird’s Blue World!
And don’t ever miss a new episode--subscribe now!
- published: 01 May 2015
- views: 944428
4:50
The three different ways mammals give birth - Kate Slabosky
View full lesson: http://ed.ted.com/lessons/the-three-different-ways-mammals-give-birth-kate-slabosky
All mammals share certain characteristics, like warm bloo...
View full lesson: http://ed.ted.com/lessons/the-three-different-ways-mammals-give-birth-kate-slabosky
All mammals share certain characteristics, like warm blood and backbones. But despite their similarities, these creatures also have many biological differences — and one of the most remarkable differences is how they give birth. Kate Slabosky details the placental, marsupial, and monotreme methods of giving birth.
Lesson by Kate Slabosky, animation by Compote Collective.
https://wn.com/The_Three_Different_Ways_Mammals_Give_Birth_Kate_Slabosky
View full lesson: http://ed.ted.com/lessons/the-three-different-ways-mammals-give-birth-kate-slabosky
All mammals share certain characteristics, like warm blood and backbones. But despite their similarities, these creatures also have many biological differences — and one of the most remarkable differences is how they give birth. Kate Slabosky details the placental, marsupial, and monotreme methods of giving birth.
Lesson by Kate Slabosky, animation by Compote Collective.
- published: 17 Apr 2017
- views: 6963333