60315111 story Even In the Wild Mice Run In Wheels 122 Posted by Unknown Lamer on Wednesday May 21, 2014 @08:29AM from the gym-for-field-mice dept. sciencehabit (1205606) writes "Scientists have found that if they place a running wheel outside, wild animals will flock to it. The researchers observed more than 200,000 mice, rats, and even frogs using the apparatus over a three year period. The findings suggest that like (some) humans, mice and other animals may simply exercise because they like to. Figuring out why certain strains of mice are more sedentary than others could help shed light on genetic differences between more active and sedentary people."