Old Fossil Teeth of Early Mammals Shocks Archaeologists, 'A Jaw-Dropping Moment' Human ancestors had an adventurous ...

Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the ...

A small but fascinating collection of Megalodon teeth exhibit deep bite marks from other Megalodons, raising questions about ...

Without any eyelids for protection, whale sharks need to get creative. They have "armored eyes" covered in teeth and can retract their eyeballs into the sockets.

All kinds of animals are present on this Earth. Most animals have ravenous teeth that are used to hunt other animals. Here ...

Humpback whales are a part of the baleen whale family, meaning they have bristles in their mouths in lieu of teeth. Their primary sources of food are tiny creatures including plankton and krill.

Sperm whales are the largest toothed whales in the world, reaching 45 tons and living for decades. Their populations were imperiled by historic whaling practices and they are still considered rare ...

Yet back then, any one of these creatures could become prey to the ocean's fiercest apex predator: the megalodon, a giant shark with massive teeth and a body the size of a whale. In many ways ...

— Spade-toothed whales are the world’s rarest, with no live sightings ever recorded. No one knows how many there are, what ...