Modern hippos first dispersed in Europe during the Middle Pleistocene, according to a new study. Modern hippos first dispersed in Europe during the Middle Pleistocene, according to a study published ...

Hippos' huge tusks and wide gape restrict grinding jaw movements, making their chewing inefficient, according to a new study. Hippos' huge tusks and wide gape restrict grinding jaw movements, making ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

The skull of Hippopotamus amphibius of Cava Montanari. Cranium in dorsal (A), ventral (B), right lateral (C), left lateral (D) and posterior (E) views. Mandible in occlusal (F) right lateral (G) and ...