Cane toads secrete a toxin that can harm or even kill animals that lick, bite or eat them, including dogs and cats.

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 ...

In the forests of western Brazil, along the banks of a Juruá River tributary, researchers came upon more than a dozen tiny creatures, smaller than a nickel, flaunting bright colors that warned: “stay ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Poison dart frogs are hard to miss. They’re bright, agile, and as ...