A critically endangered frog species that hasn’t been seen in the wild for nearly two decades is getting a lifeline in Tampa ...

Critically endangered Panamanian golden frogs hatch at ZooTampa, offering hope for the species' survival after extinction in ...

A developing frog embryo in its jelly-like egg mass can be quite the escape artist: When predators come calling, the red-eyed tree frog embryo can detect the threat and drop out of its egg to safety ...

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 ...

That’s a frog embryo, leaving its egg to enter the world, and this embryo can hatch at will. The red-eyed tree frog lays its eggs on a branch or leaf above the water. Once they’re in the last third of ...

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 ...

Red-eyed tree frog embryos are capable of hatching prematurely if necessary. Otherwise, they continue to develop in safety, in their eggs. (Karen M. Warkentin) A developing frog embryo in its ...