When a bull elephant and hippo meet in a watering hole, it's not always a peaceful coexistence. In the accompanying footage, captured by Scott Hyman in Botswana, South Africa, the much larger elephant ...

Elephants are among the largest mammals on Earth. They are loved by many for their intelligence and varied personalities.

What suddenly made long jaws such a liability? Well it looks like we can thank a changing climate for the evolution of the elephant’s trunk. Eons is available to stream on pbs.org and the free PBS App ...