Part of the mollusk phylum, Nudibranchs are the shell-less relatives of the snail and are known for their garish colors. These tiny sea creatures are usually only 2cm â 6cm in length and can be found worldwide. They are able to thrive in any depth of salt water from the deepest darkest ocean floors to warm shallow water. There are over 3,000 known species of nudibranchs, and scientist estimate tha
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