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In 2005, a psychologist and an economist taught a group of monkeys the concept of money. Soon, the monkeys engaged in prostitution.

Reddit Animals

submitted by /u/lemondeisyours [link] [comments].

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The Emotional Lives of Animals

4 The Love Of Animals

In December 2005 a 50-foot, 50-ton, female humpback whale got tangled in crab lines and was in danger of drowning. Harvard University psychologist Marc Hauser observed what could be called embarrassment in a male rhesus monkey. They still remembered one another when they were inadvertently reunited. A Grateful Whale.

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