The harlequin toad largely vanished from a deadly fungal pathogen. Biologists have rediscovered the "starry night" harlequin toad in Colombia for the first time in nearly three decades after the ...

Invasive species are always disruptive to the native wildlife in the ecosystems they take over. However, their impact on humans and domesticated animals is usually more indirect. An exception is the ...

New research suggests Sonoran Desert toads went into steep decline after stories of their mind-bending chemical properties began circulating among drug users. By Rachel Nuwer It looks much like any ...