Sharks don’t have bones. Their skeletons are made of cartilage - the same soft, flexible stuff as your ears and the tip of your nose are made of. This is true for all sharks, from the formidable great ...

The only part of their skeleton not made from this soft, flexible tissue is their teeth. The group includes the more famous animals such as whale sharks and great whites, but also all rays, skates and ...

By Johnny Diaz A South Carolina man pleaded guilty on Thursday to importing sperm whale teeth and bones from four countries and selling them in the United States, federal prosecutors said.