closeup on green endangered juvenile limestone salamander, hydromantes brunus sitting on green moss

amphibia amphibian caliornian chordata caudata color ecology hydromantes brunus lifestage limestone salamander nature pacific plethodontidae us animal biology brown california close-up closeup endangered endemic enemic green moss herpetelogy herpetology juvenile lungless macro natural newt one outdoors protected rare single small tailed vertebrate widlife wild wildlife