Fish are not reptiles
People also ask
Are fish reptiles or amphibians?
Fish are not reptiles nor they are amphibians. Amphibians are the class of animals that can live both on land and underwater while fish belong to the class of animals which can only live underwater. Let go into the details why fish are not amphibians.
Why are fish not reptiles?
Therefore, fish are not reptiles since reptiles evolved from fish-like creatures which existed more than 370 million years ago. Reptiles and fish are both ectothermic (cold-blooded) animals whose internal sources of heat are insignificant and cannot regulate their body temperature.
What is the difference between fish skin and reptile skin?
Reptilian skin is tough, irregular, scaly, and water-tight, while fish skin has scales. However, cartilaginous fish do not have scales. Fish scales originate from the skin and resemble the structure of their teeth. Reptile skin has horny epidermis which is watertight, thus making it possible for them to survive on land.
Are sharks mammals or reptiles?
Others think they are mammals because they are so similar in body shape to whales and dolphins. This may or may not surprise you, but sharks are actually in the fish family. While sharks do have a backbone, which reptiles have as well, sharks do not breathe air as reptiles do.