A male green toad inflates its vocal sac to produce loud breeding calls during mating season. These powerful calls help attract nearby females while competing with other males in the pond.

The love songs of these Panamanian frogs is a dinner bell for fringe-lipped bats. But how do they learn which frogs and toads are safe to eat and which are poisonous? A fringe-lipped bat zeroes in on ...

The beaver and moose may be enduring symbols of Canadian wildlife, but neither is uniquely Canadian from a genetic ...