The truth is, frogs bluff and crabs cheat

By Susan Milius, 15:47 PM April 15, 2008

Two research teams suspect they've caught wild animals bluffing their own kind. The scientists know of only one other published example outside of primate antics.

When an intruder croaks, small male green frogs (Rana clamitans) drop their responding croaks extra low, like genuine big guys, say Mark A. Bee of the University of Missouri in Columbia and his colleagues. For an especially deep-voiced intruder, the little guy makes his deepest response, they report in the March-April Behavioral Eco...

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