What are amphibians and reptiles? Amphibians are frogs, toads, newts and salamanders. Most amphibians have complex life cycles with time on land and in the water. Their skin must stay moist to absorb ...

Another special feature of most amphibians is their egg-larva-adult life cycle. The larvae are aquatic and free-swimming—frogs and toads at this stage are called tadpoles. At a certain size ...

And turn into one of these… Frogs and toads are amphibians and they have an incredible life cycle. Their remarkable transformation happens through a process we call metamorphosis. The tadpole ...

A sixteen-centimeter (6-inch) tadpole fossil intrigues scientists. Discovered in Patagonia, it could well redefine our ...