Glass frogs have the rare ability to turn on and off their nearly transparent appearance, researchers report Thursday in the journal Science. Ernesto Benavides/Getty Images Now you see them, now you ...

The see-through amphibians have an amazing strategy for hiding while asleep—one that could advance our understanding of blood clotting. The organs and developing eggs of a female glass frog, ...

Camouflage takes many forms in the natural world. Some animals are born with skin or coats that blend in naturally with their environment. Some Old World lizards like the chameleon have an almost ...

WASHINGTON (AP) — Now you see them, now you don’t. Some frogs found in South and Central America have the rare ability to turn on and off their nearly transparent appearance, researchers report ...

Frogs are one of the most diverse animal groups, with a wide range of sizes and colors. Scientists have identified up to 5,000 frog species and believe there are many more waiting to be discovered.

The glass frog's translucent stomach skin offers a window into its internal organs. New research finds this odd seeming trait may help the frogs evade predators. Jorge GarcÍa / VW Pics / Universal ...