David Attenborough: Why do we sing?
Evolutionary theory says that physical characters develop because they’re needed.
Birds sing to advertise sex. But what is the need for humans to be able to sing as we do?
David Attenborough describes some of the animals which have complex song and seeks to explain why humans sing and are attracted to song singers and music.
http://www.abc.net.au/rn/scienceshow/stories/2010/2805176.htm


28. Jan, 2010 








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