Add Yahoo as a preferred source to see more of our stories on Google. Hippos will kill other animals, like crocodiles, that enter their territory, especially when protecting babies. Hippos and whales ...

The world's third-largest land mammal after the African and Asian elephants, the common hippo is no pushover. Reaching up to ...

While some species of non-human primates produce technologies that assist in foraging, humans are uniquely dependent on technology for survival. How far back in time does this technological dependency ...