Jet back with metallic turquoise-green stripes and orange “chrome” limbs, these frogs were members of a new species, according to an April 25 study published in the peer-reviewed journal ZooKeys.

Curare [kyoo-RAW-ree], for example, is found on the skin of colorful poison dart frogs. Another special feature of most amphibians is their egg-larva-adult life cycle. The larvae are aquatic and ...