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Have You Ever Wondered What’s The Smallest Hole A Mouse Can Get Through

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Youtuber and woodworker Matthias Wandel decided to ask the no-so age-old question: “How small a hole can a mouse fit through if taunted with peanut butter?” Living in the country, mice are a fact of life. I was curious how small a hole a mouse could get through.Last year I experimented with a mouse maze, which included a 19 mm hole that the mouse had no problem getting through.

image/text credit:  Matthias Wandel

So the question was, how much smaller a hole could a mouse get through?Experimenting with how small a home a mouse is able to fit through. But it didn’t go as planned. I had a lazy mouse, and a hard working invading shrew.

Matthias has created an ingenious (and safe) apparatus that can test the flexibility of mice as they try to push themselves through holes of various sizes to get a peanut butter treat. From the start, the mouse is able to get through a 19mm hole, as well as a 17.5.

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As the holes became smaller, the ambition of the mouse got less and less. A mouse can (and does) squeeze through holes slightly larger than a US dime. Depending upon its diet and its need to do so, the mouse can either squeeze through slowly or force itself into it.

VIAMatthias Wandel
SOURCEwoodgears
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