Are sharks and rays bony fish?

Answer 1

yes somewhat they are...as i have learned in school, Sharks, skates, rays and chimaeras are closely related, and belong to the class of vertebrates known as Chondrichthyes. hope that is helpful! Xx

Answer 2

I don't know! I'm trying to find out the same answer. Can't believe nobody has answered.

Answer:

Scientists believe they both descended from a common ancestor.

Classified as Elasmobranchs the main similarities are 1) skeleton is made of cartilage (not bone like in other fishes) and 2) have 5-7 gill slits.

The skin of sharks and rays is also different from that of bony fishes. Comprised of "dermal denticles", also called "placoid scales" they are similar in structure to vertebrate teeth. They don't grow as the fish grows, but more are added.

Many share a common birth strategy where eggs are retained in the body where the young hatch out; it appears as if there is live birth.

There are biochemical similarities. For example, they retain urea to maintain the necessary chemical balance in salt water.

There are of course differences between sharks and rays other than their general shape. Sharks breath by drawing in water through the mouth, passing it over gills and then out the gill slits on the side of their head. Rays are generally bottom feeders (e.g. manta rays are not) so they have "spiracles" atop their heads to draw in water (otherwise would end up inhaling a lot of sand, grit etc.) , which passes over gills and then is expelled via gill slits on their underside.

Answer 3

sharks are not but rays are even though they both have lateral lines

Answer 4

All sharks are considered fish. If they were not a fish, it would be a whale. Whales are mammals, sharks are fish.

Answer 5

Sharks do have bones but it is not necessary called a bone. The bone is the jaw and the teeth. Rays do not have bones.

Answer 6

NO