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Why Are We So Afraid of Mice and Other Rodents?

Despite being much larger than mice and other small rodents, humans have a natural fear of them. But why? What is musophobia and where does it stem from?

Sara Novak
BySara Novak
Credit:nalinda117/Shutterstock

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In 2011, my husband and I moved into our first home, a small beach shack atop wooden stilts a few blocks off the beach in South Carolina. The house was a dream aside from the overstuffed marsh rats that scurried across the basement floor morning, noon, and night. When their whiskers twitched, they revealed razor-sharp front teeth, and their furless tails dangled behind them like a wedding train. Memories of those rats still send shivers up my spine.

It doesn’t matter how laid back you are when a mouse or rat scampers across the room; you can’t help but scream. But why? Find out if musophobia is written into our DNA or if it is a learned behavior.

Musophobia is known as an irrational fear of mice and rats. You might fear all rodents or a particular species with which you previously had a scary encounter. A phobia of rodents ...

  • Sara Novak

    Sara Novak

    Sara Novak is a science journalist and contributing writer for Discover Magazine, who covers new scientific research on the climate, mental health, and paleontology.

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