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SPOTTING A SNAKE IN THE GRASS is never simple, but it's easier to do, it seems, if you're petrified of serpents. Swedish researchers argue that humans have evolved to detect environmental threats faster and more accurately than they notice harmless objects and that people with phobias of creatures like snakes or spiders will find their nemesis even faster than non-fearful subjects.
Arne Ohman, Ph.D., and Francisco Esteves, Ph.D., professors of...