Contagious Laughter in a Parrot - My Latest For Nat Geo Weird & Wild

Researchers report that the kea, a particularly playful parrot from New Zealand, has a specific call that puts other kea in a playful mood. In effect, the call acts much like human laughter, spreading positive feelings to those who hear it.Read the whole story at National Geographic's Weird & Wild news blog: These Parrots Can Make Other Parrots Laugh - A First.