But big brains may be too costly to maintain when predation risk is high, forcing animals to use other strategies to survive, suggests a study on frog camouflage published Wednesday (August 17) in ...

Frogs are small and ... That's right: It's that vaguely duck-shaped rock. Ducks don't rely on camouflage a lot, but in this case, this duck family is perfectly attuned to its surroundings.

The first thing that stands out about the Surinam horned frog is its size. These rotund amphibians can grow to 8 inches in length and would cover a good-size tea saucer. They are found in ...