Lessons from Our Cousins

The Most Peaceful Apes on Earth

(Image Source: Karine Aigner/WWF-US)

Around two million years ago, a massive drought dried up part of the Congo River in Central Africa, and this allowed a group of chimpanzees to cross over into the unexplored jungle on the other side. Then, the rains returned in full force and the deepest river in the world became a barrier to non-swimming animals once more. This eventually led to the allopatric…