Black and white nesting Chinstrap penguin (Pygoscelis antarctica ... muscles to monitor their sleep activities in their natural habitat, from a distance using remote electroencephalogram monitoring.

However, gathering data on how animals sleep in their natural habitat has always been tricky and hard to do. But scientists did just that with wild chinstrap penguins in Antarctica. In doing so ...

Take chinstrap penguins (Pygoscelis antarcticus), the adorable two-foot-plus waddling birds named for the distinctive and dignified black stripes at the bottoms of their heads, which are ...

For some penguins, it means thousands of mini-catnaps a day, researchers discovered.Chinstrap penguins in Antarctica need to guard their eggs and chicks around the clock in crowded, noisy colonies.