CBSNEWS- In the wilds of Brazil, researchers have discovered frogs with venomous spikes on their heads. Although scientists have long known of poisonous frogs, these are the first venomous frogs -- ...

A team of researchers at UC San Francisco, the California Academy of Sciences and Stanford University have uncovered some intriguing clues in the mystery of how some poison birds and frogs evade their ...

They shine in vibrant red, rich blue, or bright green—and with spots, stripes, or patches, they resemble small works of art ...

A team of researchers at UC San Francisco, the California Academy of Sciences and Stanford University have uncovered some intriguing clues in the mystery of how some poison birds and frogs evade their ...