Here's why:
* Larval Stage: Amphibians begin their lives as aquatic larvae, typically called tadpoles. They breathe through gills and have a tail for swimming.
* Metamorphosis: As they grow, they undergo metamorphosis, transforming into their adult form.
* Adult Stage: Adult amphibians typically have lungs for breathing air and legs for moving on land, though they often return to water for breeding and to keep their skin moist.
Some examples of amphibians include frogs, toads, salamanders, and newts.