It is late at night, and we are silently watching a bat in a roost through a night-vision camera. From a nearby speaker comes a long, rattling trill. Cane toad’s rattling trill call. The bat briefly ...

A fringe-lipped bat, Trachops cirrhosus, responds to the calls of the túngara frog, Engystomops pustulosus, one of its preferred prey species. First, the bat hears the call of a single male túngara ...

During Panama’s wet season, forests boom with a chorus of túngara frog mating calls as males compete for females’ attention.But these calls put the frogs in a precarious position between sex and death ...

WASHINGTON (AP) — City frogs and rainforest frogs don't sing the same tune, researchers have found. A study released Monday examined why Panama's tiny tungara frogs adapt their mating calls in urban ...