Scientists figure humans may be born with a fear of spiders and snakes, healthy phobias that up the odds of survival in the wild. It's not known how such an inborn fear might develop, however.
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Thu, 02/18/2010 - 8:52am
Scientists figure humans may be born with a fear of spiders and snakes, healthy phobias that up the odds of survival in the wild. It's not known how such an inborn fear might develop, however.