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 ...

Both frogs and toads need water to survive.  Both species lay their eggs in water and their eggs hatch into tadpoles.  Tadpoles cannot survive in open air. The differences in frogs and toads ...

The Phoenix Zoo recently released 1,000 tadpoles into the Tonto National Forest, part of a program to save the threatened Chiricahua leopard frog. The zoo collects eggs every year, and those eggs ...