評論
打印
Could eating meat really have caused us to evolve?
難道真是食肉讓我們得以進化
About 2.3 million years ago,
大約230萬年以前
Homo habilis - the first ancestor we THINK ate meat - appeared.
出現了我們認為最先開始食肉的祖先——能人
There had been an amazing change.
他們一定有過驚人的演變
Though habilis stood no more than a metre tall,
盡管能人站立身高不到1米
fossils show it had a bigger skull
從化石來看他們的顱骨卻比南方古猿大
and a brain 30% larger than Australopithecus.
而且腦部比南方古猿大30%
And, crucially, scientists have speculated that
至關重要的是 科學家推測
this upright, big-brained chimpanzee
這種直立行走 腦大的猩猩
evolved as a result of eating meat.
本身就是因食肉而進化的結果
The Australopiths' brain size remained stable.
南方古猿的大腦穩步發育
Then meat-eating came in, and then the brains got bigger,
而后它們開始食肉 大腦就發育得更大
and that set everything off in the director of modern humans.
從而確定了進化成當代人類的主要演變趨勢
