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 ...

If you find an old glass flower frog, should you buy it? Besides the price, turn it over: Does it have little knobs, bars or feet on the bottom? There should be three or five, depending on the frog’s ...

These tiny Latin American tree dwellers are stellar fathers and masters at camouflage, recent research reveals. The eggs of a female sun glass frog (Hyalinobatrachium aureoguttatum) are visible ...

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, ...

Unless you've been on a desert isle for nearly four decades, innovative designs from industry icon Hartmut Esslinger and his team at Sunnyvale, Calif.-based frog design have likely caught your eye.