Should we build big wheels in nature for animals to play on?

Dutch scientists installed hamster wheels in the wild to see if animals would play on them. To their surprise thousands of mice, rats, shrews, frogs, and even slugs were observed playing in the wheel.

Now that's got me thinking should we install bigger ones in the woods so bigger animals can enjoy running on a wheel too? Just how big do we go? Fox size? Deer size? Moose? Elephant?

Could we generate electricity?
Should we build big wheels in nature for animals to play on?
Should we build big wheels in nature for animals to play on?
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