closeup on a larval japanese endangered riu-kiu sword-tailed newt, cynops ensicauda ensicauda

amphibia amphibian asian chordata caudata cynops ensicauda japan japanese riu kiu newt salamandridae sword tailed urodela animal aquatic beautiful biology bright closeup ecology endangered endemic fire bellied firebelly fish tank freshwater green herpetology indoors larvae macro natural orange outdoors pet predator salamander single status swordttailed threatened underwater wild wildlife