Humming bird's are on 2 different episodes, and are #3 on Gluttons, #10 on Dieters. They have to eat every 2 hours, or they will starve to death. Their heart beets 180 times a second, and in the amount of them it takes a human to run a marathon, that human would have lost 2200 calories, while a humming bird would have lost 22000 calories in the same amount of time, so they burn calories 10 times faster than a marathon sprinter. They visit about 100 flowers a day, and drink lots of sugar water.

  • If following the countdown for extreme Gluttons, the next contender is one hundred and million times bigger than this animal is.
  • If following the countdown of extreme Dieters, here is a link to the next contender.