Competition with snakes created evolutionary pressure

12/14/2011 | Wired.com

In a new study, scientists reviewed interviews with men of the Agta Negritos, a group of hunter-gatherers that until relatively recently lived in small, kin-based, mobile camp groups, and found that the group's complex relationship with pythons created evolutionary pressures for both species. Humans and pythons competed for food and prey, and humans who could spot camouflaged pythons had an advantage, which also encouraged snakes' evolving camouflage methods.

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