Both populations are adapted to high-elevation habitats without aquatic predators. So unsurprisingly, the main reason for the frogs' decline is the introduction of nonnative trout to alpine lakes.

When glass frogs emerge during the rainy season, researchers at the Smithsonian Tropical Research Institute follow their migration out of the forest and along streams. These transparent leaf-lying ...

“It is possible that aquatic beetles have developed the ability to survive in an environment where they are easily preyed upon by frogs,” Sugiura said. It is the first time this strategy has ...