The excavation of bone tools at Olduvai Gorge in Tanzania expands the range of ancient hominids’ cultural innovations.

After spending months learning how to be a hippo from her mother, Gloria, the five-month-old calf has now become bold enough to begin exploring her expansive outdoor enclosure on her own. In a new ...

When Japan's Osaka Tennoji Zoo took in a hippo named Gen-chan seven years ago, they were told the young animal was a male. Recently, they took a DNA test and found out the mammal is actually a female.

A pygmy hippopotamus named Thabo, originally from Singapore, has been confirmed dead by the Taipei Zoo due to what the zoo said was malnutrition and infection. In a statement yesterday, the Taipei Zoo ...