closeup on the endangered riu-kiu sword-tailed fire-bellied newt, cynops ensicauda

amphibia amphibian chordata caudata cynops ensicauda japan japanese nature newt salamandridae sword tailed urodela animal aquatic asian beautiful biology bright close-up closeup ecology endangered endemic fire bellied fire-belly firebellied tank freshwater green herpetology indoors orange outdoors pet predator red salamander single threatened underwater vertebrate wild wildlife zoology riu-kiu sword-tailed fire-bellied