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Candid Cuties! Photos of Wild Animals on Wheels

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Wheel in the Wild

Credit: Yuri Robbers
Lab mice and rats run on wheels in captivity, but researchers wanted to know if the behavior is natural. To find out, they set out exercise wheels in wild areas.
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Stephanie Pappas

Stephanie interned as a science writer at Stanford University Medical School, and also interned at ScienceNow magazine and The Santa Cruz Sentinel. She has a bachelor's degree in psychology from the University of South Carolina and a graduate certificate in science writing from the University of California, Santa Cruz. To find out what her latest project is, you can follow Stephanie on .
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