Now that we've discussed how people in ancient societies tamed animals like cows and chickens for food and other uses.
现在我们已经讨论了古代社会的人们是如何驯养像牛和鸡这样的动物，并把它们作为食物和用于其他用途的。
Now researchers studying chickens have not only confirmed this but also found other changes brought on by farming. In particular, the dumbness would appear to be aggravated by stress.
鸡研究专家现已证实了这一点，并且发现了驯养所致的其它改变，特别是动物在应激时会变得更加安静。
Three months from now, it will be 95 above and we will be cultivating corn, weeding strawberries and killing chickens.
再过三个月，气温会升到95度，我们就要给玉米松土，在草莓地除草，还要宰杀家禽。
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