Scientists at the Leiden University in the Netherlands have discovered that chimps can recognize each other by their butts the way humans recall faces.
Scientists at the Leiden University in the Netherlands have discovered that chimps can recognize each other by their butts the way humans recall faces. AP file photo
Scientists at the Leiden University in the Netherlands have discovered that chimps can recognize each other by their butts the way humans recall faces. AP file photo

There’s old what’s-his-butt: Chimps recognize rear ends like humans recall faces

December 08, 2016 4:57 PM