For a small frog, the alpine tree frog (Litoria verreauxii alpina) packs a lot of surprises. For one, this tree frog lives in snowy gullies and high mountain crags across the Australian Alps, far from ...

When ice and snow begin to melt in California's high-elevation waters, male frogs hop into action. Emerging from hibernation, they head to lakes and ponds scattered throughout the area and begin ...