Caged mice aren't the only animals that enjoy a spin on the old exercise wheel. New video footage reveals wild mice, rats, and even frogs and slugs like running (or crawling) on wheels, too.
These strange findings come courtesy of a study that used motion-activated video cameras to monitor running wheels placed in areas where wild mice roam. The study aimed to determine whether caged mice run on the wheel because captivity has made them neurotic, or if wheel-running is just fun
for animals.
for animals.
"The main concern that has been put forward by many [researchers] is that, 'Is this is an unnatural behavior, an artifact of captivity, or is it something that could occur more naturally?'" said study researcherYuri Robbers of Leiden University Medical Center in the Netherlands. "That issue, I think, we've laid to rest."
Yuri Robbers of Leiden University Medical Center in the Netherlands. "That issue, I think, we've laid to rest."
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