Plenty of animals will run a mile from a foul stench, too. While camouflage, tough skins, and fierce looks are among animals’ great defenses, these five species know that everyone runs from a big stink. (Also see “Top 5 Animal Defense Tactics.”)

Vulture

In Stand by Me, Stephen King describes a pie-eating contest that turns into “a complete and total barf-o-rama” when the winner intentionally vomits, moving the crowd to follow suit.

Vultures, too, know all about puke power. They are scavengers that feast on the rotting flesh of dead animals, which benefits us by ridding our highways and landscapes of carcasses and the bacteria they might carry. When vultures feel threatened they vomit, and the stink of barfed-on carcass puts off most predators.