Apparently, wild mice, if they encounter wheels in the wilderness, sometime run on those wheels.
This finding, however, tells us absolutely nothing – and in particular, whether mice run on wheels for fun – about the motivations of mice running on wheels in laboratory environments.
Is it suggestive? At best. Is suggestive-at-best science? No.
At least somebody in the scientific community is also skeptical:
Although most peer reviews have been positive, Mark Bekoff, a professor of ecology and evolutionary biology at the University of Colorado, said he thought the study showed that wheel-running could be a voluntary activity but that when caged, mice might do it more out of stress of confinement.
Too bad he wasn’t a reviewer.
Just because you can do some crappy experiment and can’t do some proper experiment doesn’t mean that the crappy experiment – even if it’s the best one you can do – constitutes good science. Bad experiments are always bad, even if there is no better alternative.