Eli5: Why is a phobia of spiders so common?

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Why are so many humans (myself included) afraid of spiders? Arachnophobia consistently lands in the top 10 most-common phobias. Why? Especially when there aren’t *that* many deadly species of them? Why spiders over other animals?

In: Biology

32 Answers

Anonymous 0 Comments

I’m not scared of snakes or spiders, but still involuntarily jump when I unexpectedly see either. Like a fight or flight adrenaline pump just for a moment, then I rationalise and deal with it. Definitely primal reaction, not a phobia, for me any way.

When my son was an infant I introduced him to spiders, he had no fear. But when his mum and sister screamed the place down at the sight of a spider he developed a phobia too…

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