Amphibians by nature, frogs have the unique capability to breathe through their skin which allows them to stay underwater for ...

and they had lungs as well as gills. The transition from these lobe-fins to the earliest tetrapods -- four-legged animals that walked on land -- has long been of intense interest to biologists.

Our lungs bring in oxygen and remove carbon dioxide. But other animals breathe in all sorts of different ways. Fish use gills to get their oxygen, like sharks. Animals like worms breathe right ...

Respiration Use skin, lungs, and sometimes gills; tadpoles use gills, adult frogs rely on both lungs and skin. Breathe only through lungs throughout their life, no use of skin for respiration.

similar to our lungs, which allow amphibians to breathe underwater. When a tadpole becomes a fully grown frog they lose their gills. Herbivores – Animals which eat plants. Nearly all amphibians ...