Not so with the dandiest poison dart frogs, which get to have it both ways: Their flashy colors simultaneously attract mates and warn predators. To the envy of other animals, they didn’t have to ...

Poison dart frogs sport different warning patterns depending on what signals the predators in their areas are used to, explaining why there is so much color variation in one species of frog.

The colorful markings of poison dart frogs vary depending on where the frogs live. Now, a new study using thousands of fake-frog decoys finds that these markings evolved hyper-locally, explaining ...