Over the past century and a half, however, studies in the history of human development have shown that the formation of culture is part of the biologicaladaptation.
然而，在过去的一个半世纪里，对人类发展史的研究表明，文化的形成是生物适应的一部分。
2
Thanks to our brain’s plasticity, the adaptation occurs also at a biological level.
这是因为人脑的可塑性，使适应的过程在生物学水平上也发生了变化。
3
Biologicaladaptation is the ubiquitous phenomenon in the world of biology, and it is the result of natural selection.