"It's incredibly energy-intensive and the birds use up to 50% of their body mass," he says. It is "probably the most ...

Researchers scanning satellite images of West Antarctica stumbled onto clusters of emperor penguins gathered on fast ice to ...

Uca pugnax says, "On guard blasphemer!" Image from fiddlercrab.info. Everyone knows that all crabs moult. Its no secret. When you wear you skeleton on the outside, its difficult to find the room to ...

People who live with pets notice that some animals moult in the spring and fall. Losing feathers or fur is unattractive, but it leads to a beautiful new coat in which to survive the winter or to ...

Add Yahoo as a preferred source to see more of our stories on Google. Emperor Penguins are likely more at risk from climate change than any other air-breathing Antarctic animal [Getty Images] ...