Q: You recently wrote that several kinds of birds often stand on one leg but you didn't explain why. Whenever I see a flock of flamingos in a zoo, at least some of them are on one leg, Surely ...

(CNN) — It’s a stance flamingos and other feathered species usually take, but seeing how long you can balance on one leg can be a good test of your health, according to a new study. (CNN) — It’s a ...