Red-eyed tree frogs, despite their conspicuous coloration, are not venomous. They are found in tropical lowlands from southern Mexico, throughout Central America, and in northern South America.

Red-eyed tree frog. Photo by Rhett Butler (2011). The red-eyed tree frog (Agalychnis callidryas) is one of the most colorful and best-known tree frogs (it is often used in advertisements).

Photo by Daniel Feldman. The red-eyed tree frog has become one of Costa Rica’s most iconic creatures, admired for its vibrant colors and widespread presence across the country. This frog, known for ...

Red-eyed tree frogs are famous for their striking appearance, but their real talent lies in staying hidden. In this episode, we explore how these vibrant amphibians use clever camouflage and ...

Karen M. Warkentin Warkentin has studied environmentally cued hatching in red-eyed treefrogs since the 1990s, when they learned that their embryos could hatch to evade snake attacks.

Red-eyed tree frog. Photo by Rhett Butler. In recognition of Amphibian Ark winning mongabay.com’s 2011 conservation award, our pictures of the day this week will focus on amphibians.

Red-eyed treefrogs lay their eggs on leaves that hang over ponds so that as the tadpoleshatch, they fall into the water below. Surprisingly, about half of all anurans (frogs and toads) lay their ...

About 89 percent of the frogs’ red blood cells had packed themselves into that organ. That made sense: The liver, which filters blood, is a logical destination for red blood cells, he said.

Theloderma woltersi, or the Wolters bug-eyed tree frog, is different from other tree frogs found along the Vietnam-China border because of its “distinctly flattened” body and pointed snout ...