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 ...

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 ...

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 tiny charismatic frog is just one of thousands. Not long ago, herpetologist and lifelong frog collector Devin Edmonds spent hours with colleagues scouring nearly 8,500 listings such as these on ...

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 ...

This video explores how red eyed tree frogs use extraordinary camouflage to survive in the rainforest. Viewers see how their vivid colors transform into effective disguise when they tuck in their ...