Germán Chávez is no stranger to the Amazon rain forest, where he says "one can't help but get excited" by all the reptiles and amphibians that he has made a career out of studying. But when he came ...

DNA testing of two new-to-science frog species has shown they share a common ancestor — a species that lived 55 million years ago in the mountains of what is today Brazil’s Amazonas state. The ...

Scientists found a color-changing animal with green bones on an island in the Amazon rainforest and discovered a new species, a study said. Photo from Ferrão, Hanken, Oda, Campião, Penhacek, Anjos and ...

Scientists have described a minuscule species of poison dart frog in a remote river basin in the Amazon 1. The species might be monogamous, a rarity in frogs. Alexander Tamanini Mônico at the National ...

Frogs are a critical part of the food web and keep ecosystems healthy. They're also some of nature's weirdest and most wonderful marvels.