Human footprints stir the imagination. They invite you to follow, to guess what someone was doing and where they were going.

Watch as a hippopotamus receives a surprisingly gentle teeth cleaning. The quest begins: find three giant heads, perform a ...

CLAMPED inside the mouth of a 1.5 ton hippopotamus, Roland Cherry could only watch as the light from the water’s surface ...

Moo Deng continues to delight people through song. / Lauren DeCicca/GettyImages The world’s most famous pygmy hippo, Moo Deng (which is also a type of meatball and means “bouncy pork” in ...

Teeth grinding, or bruxism, can happen day or night. But sleep bruxism is much harder to treat since many of us don’t even know we’re doing it. The condition is often only detected when ...

Diastema is a condition involving a noticeable gap between the teeth that is wider than 0.5 millimeters (0.02 inch). Most commonly, these gaps occur in the front teeth, but diastema can involve the ...

Footage from Osaka Zoo shows a man who brushes a hippo’s teeth (and the brush is probably even bigger than a broom.) Although it looks adorable, you should also know that they have some of the largest ...