Researchers calculated that if we lived like our non-cooking primate cousins, we'd spend about 48 percent of the day eating. But modern humans spend only about 5 percent of the day chowing down.

研究人员指出如果我们像不会烹饪的灵长类同类一样生活，我们得每天花费48%的时间去吃东西，但是现在，我们只需要5%的时间。

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They were much stronger than modern humans, but it's long been assumed that human ancestors were smarter than the Neanderthals.

他们比现代人类强壮得多，但长期以来，人们一直认为人类祖先比尼安德特人更聪明。

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But natural cooling techniques have been used for as long as humans have been building homes; after all, the modern air conditioner is a relatively recent invention.

但是，尽管现代空调器是一种相对新兴的发明，自然冷却技术的使用却和人类建造房屋的历史一样久远。

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But modern humans, or Homo sapiens,did.

VOA: special.2009.08.18

This is evident from DNA studies that prove Neanderthals made a small but significant contribution to the genetics of many modern humans.

BBC: Last-stand Neanderthals queried

But many questions remain about the genetic relationships between these early modern humans and present-day Homo sapiens populations.

BBC: Fossil human traces line to modern Asians

But future research is also likely to focus on the 70-plus amino acid changes that distinguish modern humans from Neanderthals.

BBC: So we're part Neanderthal. What now?