Emperor Penguins’ Winter Walk
Emperor penguins turned Antarctic winter survival into an art form. Males waddle up to 70 miles inland across sea ice, searching for traditional breeding colonies while temperatures plummet to minus 60 degrees Fahrenheit. They huddle together in massive groups, taking turns moving from the cold outer edges to the warm center. Each male balances a single egg on his feet, keeping it warm under a fold of skin while fasting for two months.