The post Researchers Find That Chimpanzees Choose Specific Rocks For Different Purposes, Teaching Us A Lot About How Humans Evolved first on TwistedSifter.

In a recent study published in PLoS ONE, researchers investigated the behavioral and pharmacological effects of self-medicative plants in the diets of Budongo chimpanzees. Wild chimpanzees eat ...

MEXICO CITY--It’s so hot in Mexico that howler monkeys are falling dead from the trees. At least 83 of the ... it as bad as this” — but he has a lot of human problems to deal with as well.

The individual, seen swinging between tree ... apes in the forest. The captured video provides that long-awaited proof. “It was also a vindication in many ways … prior to this, there was a lot ...