amphibian is a kind of taxonomic group of animals
amphibian_genus is genus. caeciliidae is amphibian_family. leptodactylidae is amphibian_family. amphiumidae is amphibian_family. amphibian_family is family. hylidae is amphibian_family. amphibian is animal. hylidae is amphibian. caeciliidae is amphibian. amphibian is animalia.