Humans Have Evolved To Naturally Fear Spiders And Snakes, Study SaysHumans don't just learn to be scared of spiders and snakes, they are actually born with the fear of those creatures already in their brains, a study says.
Study: Human Faces Evolved From FistfightsFistfights over women, resources and other physical forces evolved human facial structures, allowing our ancestors to more effectively defend direct punches to the face.

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