¶ That social structure is shaped by environment — for instance, a species whose food is widely dispersed may need to live in large groups.
¶ That complex societies evolve step by step from simple ones.
¶ And the so-called social brain hypothesis: that intelligence and brain volume increase with group size because individuals must manage more social relationships.
The findings challenge social constructions. Put simply, the survey emphasizes how important genes are in shaping sociality. I found this article intriguing because it spoke about family trees, which we spoke about in class.
http://www.nytimes.com/2011/12/20/science/genes-play-major-role-in-primate-social-behavior-study-finds.html?ref=science
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