The remote forests of southern Chile are home to the Southern Darwin’s Frog (Rhinoderma darwinii). Discovered by Charles ...

Frogs mate in a position called amplexus, with the smaller male clasping the female from behind in a ride that can last two days or more. As she lays eggs, he expels sperm to fertilize them.

The evolution of the frog is one of the most famous and popular forms of metamorphosis. The early stages of the life cycle revolve around eggs and tadpoles. Over the morphing period, lungs replace ...

The study of the cell cycle focuses on mechanisms that regulate ... studies of the cells of rapidly dividing fertilized frog eggs as well as mutant yeast cells that could not divide.

But frogs aren't the only animals that go through metamorphosis. Butterflies also go through a lot of changes during their life cycle. The female butterfly lays her eggs on a leaf, out of which ...

Curare [kyoo-RAW-ree], for example, is found on the skin of colorful poison dart frogs. Another special feature of most amphibians is their egg-larva-adult life cycle. The larvae are aquatic and ...

But frogs aren't the only animals that go through metamorphosis. Butterflies also go through a lot of changes during their life cycle.A female butterfly lays her eggs on a leaf out of which ...