Penguins are birds, which mean they have feathers.Penguins hop in and out of the freezing Antarctic Ocean in an environment where winds can reach 90 m.p.h. (144 km/hr.)One would think ice would cake up all over their feathers. Yet penguins are able to handle extremely cold temperatures AND remain ice-free! Using a scanning electron microscope, researchers were able to study the fi...
To access content, please login or purchase a subscription.