Are Sharks A Fish

These skeletons differ greatly from those of the bony fish or other terrestrial vertebrates. Sharks also lack a rib cage which would result in its own. In addition because they don t have swim bladders and skeletons made of cartilage rather than bone we ve found that sharks are cartilaginous fish.

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Whether a shark is a mammal or fish is a query that leads to quite a lot of confusion and a few debates as well.

Are sharks a fish. Sharks are not mammals. Modern sharks are classified within the clade selachimorpha or selachii and are the sister group to the rays however the term shark has also been used for extinct members of the subclass elasmobranchii. That species is cartilaginous fish the same as manta rays and sting rays. There are over 500 species of sharks swimming in the worlds oceans and they all fall into the class cartilaginous fish.

The fact is sharks are fish. Cartilage is flexible durable and has about half the amount of density as bones. Are all sharks fish. Sharks are a species of fish they are not mammals.

Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton five to seven gill slits on the sides of the head and pectoral fins that are not fused to the head. As a result this helps to reduce the skeleton s weight and conserves energy. Sharks do not have mammary glands and do not feed their young so are therefore disqualified from being named mammals. We ve also found that sharks are fish.

Sharks use gills to breath with as fish do rather than lungs that exchange respiratory gases. All species of sharks are classified as fish. Now find out the answers to more animal questions. No sharks are not mammals but actually fall under the category or class of fish.

Of all the species 70 of the sharks bear live ones and the remaining 30 lay eggs. Rather they are a species of fish because they have a skeleton that is entirely composed of cartilage and is equipped with tough leathery scale less skin. Most people think sharks are mammals as they give birth to young ones pups but some do lay eggs.