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 ...

A tree frog: female (larger individual below) laying eggs, which are protected by the 'foam nest' and male (smaller individual above). When it comes to laying eggs, tree frogs have some unusual habits ...

When frogs start disappearing from a place that they've been in for decades, it can be a warning sign for the whole ecosystem. In Indiana, nature lovers and scientists are raising the red flag for the ...

Fight or flight. They’re basic animal responses once considered purely instinctual—or perhaps strictly a natural learning process—but they may actually be a combination of the two. According to ...

With their hearts, guts and other internal organs visible through translucent skin, glass frogs look vulnerable. Now, scientists have found that the embryos of these nocturnal frogs do not like ...

For spotted salamander embryos nearing hatching, they get by with a little help – not from friends, but from animals that are actually their predators. Voracious frog tadpoles chew on the egg masses, ...

Early spring frogs begin mating calls almost as soon as they wake from hibernation. Frogs spend the Northland winter either in the mud under the pond or buried under leaves on land. Regardless of ...

At the brink of extinction, the mountain yellow-legged frog, a once plentiful SoCal critter, has a new hope in population replenishing. The Los Angeles Zoo announced Thursday that it successfully bred ...

They're tiny, adorable and endangered: Six new species of miniature frog have been discovered in Mexico by researchers from the University of Cambridge, London's Natural History Museum and the ...