This video shows a close-up view of a colorful red-eyed tree frog resting on a moss-covered branch in the tropical rainforest of Costa Rica. The frog has bright green skin, striking red eyes, and ...

This video shows a red-eyed tree frog resting on a moss-covered branch inside a tropical rainforest in Costa Rica. The frog’s ...

A new study from the Smithsonian Tropical Research Institute (STRI) shows that red-eyed treefrog embryos hatch early when exposed to high ammonia levels — an environmental cue that it’s too hot and ...

Add Yahoo as a preferred source to see more of our stories on Google. Frogs have long held a bad rap (at least among some people) for being slimy, even scary, critters, but that's not very fair to ...

Frogs are a critical part of the food web and keep ecosystems healthy. They're also some of nature's weirdest and most wonderful marvels.