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 ...

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 ...

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 ...

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 ...

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Although red-eyed tree frog embryos appear helpless within their jelly-coated eggs, they can hatch up to two days ahead of schedule, reacting within seconds to attacks by egg thieves. Although ...

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 ...