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Help, elephants need somebody

In pull-together tests, pachyderms on par with chimps

4:27pm, March 8, 2011

In a test of cooperation, elephants know when two trunks are better than one.

Working in pairs, elephants learned to pull on the same rope at the same time to haul tasty corn within reach, says comparative psychologist Joshua Plotnik, now at the University of Cambridge in England. The animals didn’t just learn a trick by rote, he says, but rather showed signs of grasping the basics of how cooperation works.

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