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 ...

Red-eyed tree frogs are famous for their bright colors, but their real power is camouflage and deception. In rainforests filled with predators, these frogs use body position, color patterns, and ...

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 ...

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, ...

Red-eyed tree frogs, Agalychnis callidryas, lay their eggs on foliage at the edge of ponds; when the tadpoles hatch, they fall into the water. Normally, an egg hatches six to seven days after it is ...

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 ...

How does a frog save itself when it hasn’t even been born? Every red-eyed tree frog must confront this dilemma. The frogs lay their eggs on plants that lie over ponds. After a week, the tadpoles hatch ...

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 ...