Bullfrogs are fascinating amphibians with an impressive repertoire of sounds. Their name comes from the male’s deep, resonant “mooing” call, which sounds a lot like a cow or bull. However ...

Calling by male bullfrogs may be elicited by calls of distant neighbors or even inhibited by calls of neighbors close by, say researchers at Brown and the University of Rhode Island.

American bullfrog populations have exploded around the world with dire consequences for native wildlife. But researchers say they may have found a way to help these species rebound.