Frog Survival 101: Fake a Mean Look
Credit: David Cannatella

For nonpoisonous frogs, the trick to not becoming dinner is to look poisonous — but not too poisonous. Scientists studied frogs in the Amazon rainforest in Ecuador, and this non-toxic frog, Allobates zaparo, has colorful patterns that tell predators that it is toxic and would not make a good meal. Although A. zaparo can't actually back up this threat, its coloration fools predators into looking elsewhere for food.