Emperor Penguins thrive in harsh conditions, but a new study shows that their fate depends on human action to slow global warming and associated loss of sea ice.
Emperor penguins have uniquely adapted to their Antarctic home.
Christopher Michel/flickr
Emperor penguins have a few hidden tricks to stay warm, like blood vessels in the nose arranged so they can regain most of the heat that would be lost by breathing.
Not too hot, not too cold, but just right.
Gary Miller/Australian Antarctic Division