Deep in South American rainforests, a mysterious amphibian hides, baffling scientists with its unusual life. Its secret ...

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 ...

At first glance, the image is a close-up of the ground covered in dried leaves and broken branches. There appears to be a ...