烹饪在人类进化过程中起到的作用。
从肉在人类进化过程中扮演的角色到虐待动物的残酷性问题。
Vaclav Smil takes his usual clear-eyed view of the whole landscape, from meat's role in human evolution to hard questions about animal cruelty.
而煮食块茎食物能够增加卡路里的提供。他们认为，在人类进化过程中在他们周围有大量的根茎植物。
They say an increase in calories is what's important when it comes to the development of larger brains, and that cooked tubers would have provided just such a boost.
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