A woodpecker carrying a weasel on its back is taking the internet by storm. However, the photo is leaving us with some big questions. Is it real? How can it carry such a big weight and fly? Is anything stronger in the animal kingdom? There is a only one person to turn to in times like this... Deadly 60 presenter Steve Backshall. "For the bird to be able to fly is pretty extraordinary, but not unheard of, so...