50 Shades of Prey: Poison Dart Frogs

Nothing says "STAY AWAY!" to a predator like a tasty-looking creature that's a little too flashy. Bright colors and crazy patterns are nature's skull and crossbones, a warning to the carnivorous to look elsewhere for meals. Toxic animals usually have uniform markings: Each member of a species looks the same. Monarch butterflies bear the same patterns; puffer fish all puff up in the same way. But there's one animal that ignores this advice completely: the poison dart frog. These deadly amphibians have developed endless combinations of shades and markings, making it a challenge for hungry birds and snakes to keep track of their

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