He collected specimens that inspired his theory of Natural Selection.This carved sperm whale's tooth, or scrimshaw, was made on the HMS Beagle. It is made from ivory and was carved by James Bute.

And if whales really had made this huge transition ... particularly their large, triangular cheek teeth, strongly resembled those of mesonychids, a group of hoofed Eocene carnivores.

In other studies of beaked whales, vestigial teeth were determined to have receded ... Weights and measurements and descriptions were made of various muscles and organs to help us describe this ...

Scientists in New Zealand are carrying out a dissection of a spade-tooth whale, which is one of the rarest whale species in the world, as part of the first such examination of the entire specimen.

These whales' massive heads and jaws accommodate hundreds of baleen “teeth.” Rights and other baleen-feeding whales use a comblike strainer of baleen plates and bristles to ensnare tiny ...

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 ...