If you’ve ever wondered just how a penguin would look while walking on a treadmill, you’re finally in luck.
According to The Guardian, a research team out of the University of London conducted research in Antarctica studying the effect of weight on king penguins.
King penguins must gain a good amount of weight in order to have enough fat during a 14 to 16 month breeding cycle.
“However, being too fat make them less stable and thus easily spotted and eaten by predators,” Astrid Willener told The Guardian. “So understanding the biomechanics of how penguins deal with walking with an additional quarter of their usual weight, while still being quiet stable, is very interesting.”
The researchers kept penguins for two weeks in a fasting state and tested them on a treadmill going just under 1 mile per hour. Their research showed that fatter penguins are less efficient and less stable waddlers, though they were able to adapt sufficiently to their larger bodies.
Some penguins, Willener said, didn’t cooperate.
“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,” she said.
Here’s a video of the penguins in action:
MORE: The Guardian