英語時差:隨節(jié)奏舞蹈的時髦鳥兒

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If there’s any one thing that really separates humans from most other animals, it’s our ability to get funky. When’s the last time you saw a lion, or a giraffe, or even a chimpanzee, do the Funky Chicken or the Electric Slide? But there is one other species that can hold its own on the dance floor – birds. A few studies have shown that some parrots and cockatoos can bob their heads and sway in time to music.Do a YouTube search for “dancing birds” and see for yourself. So why are birds rhythmically endowed and not, say, chimps, our closest animal relatives? Probably because birds, unlike chimps, but like people, can mimic sounds. When a parrot squawks out a human phrase or impersonates a sound effect, it’s doing two things: processing the sound it hears, and monitoring the sound it makes in imitation. Something similar goes on when we dance–we hear the music, and also somehow coordinate our bodies to move in time to it. In fact,scientists speculate that humans evolved the ability to dance as a by product of learning to speak by imitating sounds. Or maybe dancing evolved alongside sound mimicry. In any case, it’s interesting that the only animals besides humans that can dance are birds that mimic sound. It suggests that the two traits are related.