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 ...

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 ...