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 ...

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 ...

In behavior never before recorded by scientists, male red-eyed tree frogs are shown shaking their rumps and entire bodies to show dominance. The shaking often precedes wrestling between the two males.

Red-eyed tree frogs rely on a unique blend of color and stillness to disappear into rainforest foliage. When resting, their bright markings fold away, creating a perfect leaf-like disguise. Predators ...

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 ...

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, ...

What prompts the embryos of certain frogs to hatch early if shaken by a hungry reptile but not if buffeted by an outside force such as rain? According to biologist Karen Warkentin, it's a ...

They look cuddly, but red-eyed treefrogs have a secret dark side. When Michael Caldwell, Smithsonian postdoctoral fellow, filmed the frogs under infrared light he saw a curious behavior: they started ...

Even as little embryos in eggs, red-eyed tree frogs are totally badass. Researchers have discovered that when the embryos are attacked by a hungry predator, they can wiggle their way out of their eggs ...

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 ...