Sunlight is critical to life on Earth, but excessive exposure to sunlight can cause serious harm. Infrared rays can cause burns, and ultraviolet (UV) radiation damages the DNA of cells. So, as you ...

A coup by two hippo bulls is out of the ordinary. 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 ...

Lions rarely hunt hippos, but hungry lions can do crazy things. As extreme drought overtakes Katavi, predators struggle to find food. Lions rarely hunt hippos, but hungry lions can do crazy things.

Karen Paolillo (with the skull of a hippo named Bob) watches over a hippo pod in remote Zimbabwe, where tensions flare. Paul Raffaele Because Africa's scarcest natural resource is water, ...

Footage from Delhi Zoo shows a hippo casually escaping its enclosure while bystanders looked on. With their massive size and aggressive nature, hippos pose serious dangers to humans. 54 shot, 7 dead, ...