Why Do Chimps Recognize Each Other's Rumps?

lifeslittlemysteries.com - By: Natalie Wolchover - Chimps never forget a familiar face — or butt. The discovery that chimpanzees can easily match photos of their groupmates' rear ends to the correct faces on a computer screen won Emory University primatologists Frans de Waal and Jennifer Pokorny this year's Ig Nobel Prize in anatomy. The Ig Nobel Prize Ceremony, a spoof of the Nobels held each year at Harvard University, honors scientists who have made genuine, but also offbeat, scientific discoveries. Life's Little Mysteries caught up with de Waal at the 22nd annual ceremony yesterday (Sept. 20) to discuss chimp butts, and what they might say about human brains.

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