Labor can be a painful ordeal for many women, but some of the real miracles of birth take place in the animal world. Some animals are extreme in the amount of young they can produce, while others create some of the biggest babies on earth! The Tasmanian Devil gives birth to about 50 tiny babies at a time, but only the 4 that find her milk supply will survive. The kiwi lays an egg about 25 percent of it's total weight! That would be like a human having a 30 pound baby. Find out which animals are the Most Extreme in this top ten countdown.