Two famous parrots and a bevy of YouTube videos have now convinced scientists that people aren't the only ones who can groove to a musical beat.Dancing has long been thought to be uniquely human. Toddlers will spontaneously bob along with music, but you never see dogs or cats listen to a tune and tap their tails in time.
2009 may 1 Nell Greenfieldboycehttp://www.npr.org/templates/story/story.php?storyId=103629651
+ http://inventorspot.com/articles/snowball_dancing_cockatoo_disproves_evolutionary_theory_21320
+ http://www.economist.com/science/displaystory.cfm?story_id=13570066
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