Chinstrap penguins take thousands of very short naps every day

While incubating their eggs, chinstrap penguins need to stay vigilant for predators – so they only sleep for a few seconds at a time

​While incubating their eggs, chinstrap penguins need to stay vigilant for predators – so they only sleep for a few seconds at a time While incubating their eggs, chinstrap penguins need to stay vigilant for predators – so they only sleep for a few seconds at a time