closeup on a juvenile captive bred hokkaido salamander, hynobius retardatus, feeding on small fruit fly maggots

biodiversity herpetology salamander retardatus vertebrate amphibian hynobidae juvenile hokkaido hynobius detailed amphibia chordata japanese outdoors predator wildlife closeup captive feeding maggots asiatic caudata urodela biology endemic zoology nature animal single tailed small fruit asian japan macro bred newt wild fly