Nature always has the potential to outdo human imagination. From across oceans, forests, deserts, and isolated islands, there ...

This photo provided by researchers in December 2022 shows a glass frog, strict leaf dwelling frogs, that sleep, forage, fight, mate, and provide (male) parental care on leaves over tropical streams.

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 ...

What if you had the power of invisibility, but it only works when you’re asleep? That might be useful for a surreptitious nap in public, but it still probably wouldn’t suit you as well as it does the ...

At first glance, it might look like a tiny green jewel clinging to a leaf in the rainforest. But if you get closer — and look from just the right angle — you’ll notice something astonishing: you can ...

After years of diligent work in the forests of Colombia and museums overseas, there is officially a new member in the family of frogs called the Centrolenidae, more commonly known as Glass Frogs.

Glass frogs are named for their translucent skin, which helps display their internal organs from underneath (you can even watch their hearts beat). Although there are more than 150 different glass ...

The glass frog’s unusual adaptation to bolster its camouflage could offer clues for preventing deadly blood clots in people. By Veronique Greenwood At first glance, you might miss the glass frog of ...

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, ...

As tiny glass frogs fall asleep for the day, they take almost 90 percent of their red blood cells out of circulation. The colorful cells cram into hideaway pockets inside the frog liver, which ...

A researcher discovered that an obscure species of nocturnal glass frog, Sachatamia orejuela, uses visual signaling as well as acoustical calls to communicate within their environment. Other frog ...