A frog's life is different from a fish's life in several ways. Frogs can live both on land and in water (amphibians), while fish can only live in water. Frogs have legs for hopping on land and webbed feet for swimming, whereas fish have fins and tails for swimming only. Frogs breathe air through lungs and skin, while fish breathe underwater using gills. Frogs start as tadpoles in water and transform into adults, but fish remain in water throughout their lives.