Watch this penguin walk on a treadmill in the name of science – video

Researchers have placed king penguins on a treadmill to better understand their waddle and their gait. They found that while slimmer penguins were able to waddle better, having a high fat reserve helped them survive a long reproductive cycle of 14 to 18 months. Lead researcher Astrid Willener said the research was not all smooth sailing, 'Sometimes the penguins were lazy and "water-skied" on the treadmill by leaning their back on the back wall of the treadmill. That is obviously not good for the data collection'