Blue jeans poison dart frogs cannot be handled since their skin—not made of denim—is extremely toxic. Beverly Houwing, Costa ...

The Hyalinobatrachium dianae glass frog, discovered ten years ago, showcases nature's beauty with its unique features and ...

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 ...

Before she started her PhD, she went to Costa Rica to learn more about the tropics and look for a research topic. The red-eyed tree frog’s terrestrial eggs caught her interest. She visited the ...

A spectacular, under-the-radar private reserve on the Central Pacific coast of Costa ... frog — was spotted here. Look for transparent glass frogs near water sources and red-eyed tree frogs ...

In a mountain valley of Central America, a “smooth” creature used its “long” limbs to cling to a tree trunk ... ventured into the peaks of Costa Rica several times between 2008 and ...