91热爆

Fossil whodunnit?

Dr Bob Brain of the Transvaal Museum visits Swartkrans Cave to find out what dangers the Australopithecus africanus found there might have had to defend themselves against.

12 October 2010

5 minutes

This clip is from

Walking with Beasts—The Science of Walking with Beasts, The Beasts Within

91热爆 Nature

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