Filter-feeding sharks include whale sharks, megamouth sharks and basking sharks. These species have teeth, but they are largely vestigial - meaning they once served a purpose but over time the animal ...

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.

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 ...