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). The ...

Tree frog tadpoles are the ultimate escape artists. To avoid becoming breakfast, the embryos of red-eyed tree frogs (Agalychnis callidryas) prematurely hatch and wriggle away from a snake’s jaws in ...

Red-eyed tree frogs are famous for their bright colors, but their real power is camouflage and deception. In rainforests ...

Red-eyed tree frogs, Agalychnis callidryas, lay their eggs on foliage at the edge of ponds; when the tadpoles hatch, they fall into the water. Normally, an egg hatches six to seven days after it is ...

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. The red-eyed tree ...

Although red-eyed tree frog embryos appear helpless within their jelly-coated eggs, they can hatch up to two days ahead of schedule, reacting within seconds to attacks by egg thieves. Although ...

The red-eyed tree frog has become a Costa Rican icon as a result of its ubiquity and beauty. They are nocturnal, so your best chance to spot one is after the sun sets — if you can handle the ...

Jaymi Heimbuch is a writer and photographer specializing in wildlife conservation, technology, and food. She is the author of "The Ethiopian Wolf: Hope at the Edge of Extinction." Red-eyed tree frogs ...

A developing frog embryo in its jelly-like egg mass can be quite the escape artist: When predators come calling, the red-eyed tree frog embryo can detect the threat and drop out of its egg to safety ...

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 its striking red eyes, ...

Red-eyed tree frog embryos are capable of hatching prematurely if necessary. Otherwise, they continue to develop in safety, in their eggs. (Karen M. Warkentin) A developing frog embryo in its ...