If you go back to this particular graphic, the interesting thing is how have humans changed and what are they like now.

如果你回过头来看这张图,思考人类是如何演化的,现在又成为什么样

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Then you see way back in human histories figures like this where people had to go hunt for their food, and of course there was danger involved in this.

让我们回到人类演化史上,如这张图所示,人们不得不去狩猎觅食,当然,这是非常危险的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Here is a picture of a cover from the journal--the magazine The Economist who were writing about food and nutrition in modern times and they created this graphic for the website to show the evolution of humans.

这是来自《经济学人》杂志的一篇关于,现代食品和营养的报道,他们为网站制作了这张图,来演示人类的演化过程

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选