The whites of your eyes are not an accident. They are, scientists now believe, one of the most sophisticated social ...

Chimpanzee experiments suggest early humans were likely fascinated by crystals because of their unique transparency and ...

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Chimps’ love for crystals could help explain our ancestors’ fascination with the shiny stones. The forerunners of modern humans collected crystals for which they had no apparent use, say scientists.

Chimpanzees consistently choose crystals over ordinary rocks, suggesting a curiosity that may echo early humans.

The human side of the room was crowded with computer monitors, TVs, video cameras, food dishes and machines that dispense treats to the chimps. The chimp enclosures, which look like oversize ...

Scientists analyzed the urine of wild chimpanzees who'd feasted on fallen fruit to see how much alcohol they consumed from the fermented sugars.

Bonobos for years have had the reputation of being the cool hippies of the simian world, with a "make love, not war" ethos, ...

KIBALE NATIONAL PARK, Uganda — The man tracking chimpanzee movements in a rainforest is required to follow the primates wherever they go — except up in the trees. Onesmas Ainebyona stalks the chimps ...