When people are depressed or anxious, they are much more likely to see their glass as half empty than half full. In tough times, evidence of that same pessimistic outlook can be seen in dogs, rats, and birds. Now, researchers reporting online on June 2 in Current Biology, a Cell Press publication, show that bees, too, share those very same hallmarks of negative emotion. "We have shown that the emotional responses of bees to an aversive event are more similar to those of humans than previously thought," said Geraldine Wright of Newcastle University...
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