2006-12-29 04:21:36 · 7 answers · asked by Random Thoughts 2 in Environment
The skeleton of the shark is very different from that of bony fishes such as cod; it is made from cartilage, which is very light and flexible, although the cartilage in older sharks can sometimes be partly calcified, making it harder and more bone-like. The shark's jaw is variable and is thought to have evolved from the first gill arch. It is not attached to the cranium and has extra mineral deposits to give it greater strength.
2006-12-29 05:09:10 · answer #1 · answered by Professor Armitage 7 · 1⤊ 0⤋
Most of the shark is cartolidge, but the backbone, head, and jaw are mostly bone.
2006-12-29 04:24:38 · answer #2 · answered by QFL 24-7 6 · 0⤊ 0⤋
sharks have bones! the jaw is bone and teeth
2006-12-29 04:27:55 · answer #3 · answered by joseph s 1 · 0⤊ 0⤋
Sharks have no bones -
google: shark bones
and see what you get
2006-12-29 04:44:55 · answer #4 · answered by smartprimate 3 · 0⤊ 0⤋
the jaw is actually bone along with the teeth, go google it for some pictures.
2006-12-29 04:23:34 · answer #5 · answered by xeraphile 3 · 0⤊ 0⤋
It's cartilage, not bone.
http://www.enchantedlearning.com/subjects/sharks/anatomy/Skeleton.shtml
2006-12-29 04:22:41 · answer #6 · answered by MOM KNOWS EVERYTHING 7 · 1⤊ 0⤋
yesh, if they have no bones, then what is that pointy white stuff that cuts your skin if you get bitten by them!??
2006-12-29 05:08:15 · answer #7 · answered by alex wolfgang black 2 · 0⤊ 0⤋