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 ...

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WASHINGTON— Wildlife protection groups today petitioned the U.S. Fish and Wildlife Service to protect hippos under the Endangered Species Act. The legal petition was filed by the Humane Society of the ...

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 ...