An alpha hippo is challenged by two outside males. A coup by two hippo bulls is out of the ordinary, but this is no ordinary year, as a once-in-a-lifetime drought spurs unusual animal behavior.

After making waves nationally, Poppy the pygmy hippo has waddled back to the outdoors at the Metro Richmond Zoo.

A baby pygmy hippo is making her outdoor debut at a Virginia zoo. The endangered hippo named Poppy was born Dec. 9 and it finally got warm enough for her and mom Iris to go outside March 28 at Metro ...