0 amphibians (= animals that live both on land and in water but must produce their eggs in water) as a group:
Typical aquatic vertebrates, including most fishes, amphibia and reptiles, use lateral (side-to-side) undulations for propulsion.
The corpuscles of birds, amphibia and fish are flattened, elliptical plates.
The naturalist Jan Swammerdam discovered the glands in Amphibia named after him.
