Science and technology

Associated Press
In this 2009 picture provided by Think Elephants International, two elephants pull a platform with a food reward, designed only to work with the cooperation of two animals, at the Thai Elephant Conservation Center in Lampang, Thailand. Animal researchers in recent years are finding that thought processes in animals aren't a matter of how closely related they are to humans. You don't have to be a primate to be smart. (AP Photo/Think Elephants International)

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