The golden poison dart frog looks harmless — small, brightly colored, and no larger than a light bulb. But it is one of the most poisonous animals ever discovered. A single frog carries enough ...

If not for a pair of Smithsonian scientists, the fingernail-size frog from Brazil would have likely gone extinct without ever being described ...

The “metallic poison frog” Ranitomeya aquamarina (left) and the “heavenly” Ranitomeya aquamarina (right) are the first newly discovered species in their genus in 13 years. That long trek for humans is ...

A team of wildlife researchers from Instituto Nacional de Pesquisas da Amazônia, in Brazil, working with a colleague from the National Museum of the Czech Republic, has discovered a new species of ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. If you thought the poison dart frog was a scary animal, ...