Trying
to stick to your New Year’s diet resolution? Feeling hungry? You
probably don’t get as hungry as hummingbirds. Because they fly in a not
very efficient way, with their wings rotating in circles (instead of
beating up and down) up to 200 times per minute, they need a lot of
energy. To keep it going they eat many small meals per day, yet
altogether they guzzle at least twice their body weight in nectar! Plus
they munch insects for protein. But of course their body weight isn’t
very much—some tip the scales at less than a penny. So don’t expect to
see one on The Biggest Loser.