Mollie the hamster logs about six miles a night on his wheel, via the Strava app. | Courtesy of Mollie’s owner, ThijsMollie, a 10-month-old pet hamster in the Netherlands, probably runs a lot more than you. We know this because, a few weeks ago, a Dutch physicist named Thijs — who…This story appeared on vox.com , 2026-08-12 12:30:00.