According to the Shark Trust, sharks, skates and rays all belong to a subclass of Chondrichthyes known as the Elasmobranchii. The class Chondrichthyes consists of fish-like marine animals that have skeletons made up of c... More » Science Biology Zoology

Sharks are classified as vertebrates in the phylum Chordata. Although their skeletons are made of cartilage rather than hard bone, they are still considered vertebrates. More » Pets & Animals Marine Life Sharks

Fish that do not have scales include catfish, sharks, rays, chimaeras, skates, moray eels, sturgeons, paddlefishes, salifin blennies, combtooth blennies, hagfishes and lampreys. Many of these fish have evolved scale alte... More » Pets & Animals Marine Life Fish
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Three examples of cartilaginous fish are skates, rays and chimeras. There are many types of each of these cartilaginous fish. For example, stingrays, butterfly rays, manta rays and sawfish are all rays. More » Pets & Animals Marine Life Fish

Sharks are fish, but they belong to the group called Chondrichthyes, or cartilaginous fish, which is a different scientific group than most types of fish. Common fish, such as tuna or salmon, all belong to the group Oste... More » Pets & Animals Marine Life Sharks

Animals that might eat humans include bears, big cats, sharks, wolves and some large reptiles, such as crocodiles, alligators and komodo dragons. Scavengers like vultures, coyotes, hyenas, crabs and insects generally eat... More » Science Biology Zoology

Several species of animals are color blind or see muted colors, including dogs, cats, bulls and sharks. Many fish can see muted colors. More » Science Biology Zoology