There’s a reason why Hollywood makes movies like Arachnophobia and Snakes on a Plane: Most people are afraid of spiders and snakes. A new paper published in Current Directions in Psychological Science, a journal of the Association for Psychological Science, reviews research with infants and toddlers and finds that we aren’t born afraid of spiders and snakes, but we can learn these fears very quickly.
One theory about why we fear spiders and snakes is because so many are poisonous; natural selection may have favored people who stayed away from these dangerous critters. Indeed, several studies have found that it’s easier for both humans and monkeys to learn to fear evolutionarily threatening things than non-threatening things. (more…)