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 ...

While the bright coloration of this red-eyed tree frog doesn’t make the amphibious creature see red, it does provide an eye-catching display for humans who glimpse it in its rainforest habitat. In ...

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 these amazing amphibians. There are currently around 7,600 known species ...

On June 26, 2025, Zurich Zoo highlighted the plight of the endangered orange-eyed tree frog. Native to Costa Rica, this colorful amphibian faces extinction from the deadly chytrid fungus. Researchers ...