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 ...

In nature, timing isn’t just important — it’s everything. A frog hatching a few days earlier, a plant blooming out of season or a predator emerging later than normal can trigger ripple effects through ...

Even a 5-day-old frog has to balance the benefit of avoiding a hungry snake against the cost of hatching early. And, in fact, Warkentin and her colleagues have documented that early-hatching tadpoles ...