If you have some nasty habits, well, you're nothing compared to the grossest behaviors of the natural world! We're counting down the top 10 Most Extreme gross outs in the animal kingdom, and seeing how we compete with our own atrocious manners. From giraffes that pick their noses with their tongues to a fish that makes SLIME as a defense, discover that there's heaps of hilarity ahead when gross outs are taken to the Most Extreme.