Unlike many other vertebrates, Sharks have no bones at all. Their skeletons are made up entirely of cartilage.
Animal Facts

Unlike many other vertebrates, Sharks have no bones at all. Their skeletons are made up entirely of cartilage.

After a shark dies, the salt from the ocean water will completely dissolves its skeleton, leaving only the shark’s teeth behind.

Unlike many other vertebrates, Sharks have no bones at all. Their skeletons are made up entirely of cartilage.

After a shark dies, the salt from the ocean water will completely dissolves its skeleton, leaving only the shark’s teeth behind.