Researchers have identified a protein that may help a poison dart frog collect toxins from food and transport them to the frog’s skin, Erin Garcia de Jesús reported in “How poison dart frogs hoard ...

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 ...