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 ...

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 ...

Life, even an entity as seemingly simple as a frog egg, is flexible. It has options. At five days or so, red-eyed tree frog eggs, developing right on schedule, can suddenly take a different path if ...

A curious aspect of tree frogs is that they often lay their eggs on the ground where the risk of predation by natural enemies is greater than in the trees where they live. A research team suggested ...

Wood frogs are highly dependent on environmental conditions to determine whether they are active. After fattening up during ...

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, ...