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 ...

Many scientists believe the red-eyed tree frog developed its vivid scarlet peepers to shock predators into at least briefly questioning their meal choice. These iconic rain-forest amphibians sleep by ...

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, ...

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 ...

Female red-eyed tree frogs are more than twice as likely to select a mate if they can feel the vibrations of their call instead of only hearing it. These small, bright-green frogs (Agalychnis ...

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 sudden ...

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 ...

Discover the red-eyed tree frog's unique nictitating membrane and its role in survival for this Central America native. The red-eyed tree frog, as its name implies, has some pretty striking orbs. But ...

South America is home to all manner of crazy-looking amphibians, from vibrant poison dart frogs to cartoon-looking red-eyed tree frogs. And another one just joined the ranks: the polka-dot tree frog, ...

Five-day-old red-eyed treefrog embryos are tightly curled inside dehydrated eggs packed closely together. It’s dry enough to make them begin to hatch early amid heating. Karen M. Warkentin As the frog ...