closeup on a large neotenic adult pacific giant salamander, dicamptodon tenebrosus

aaaa amphibia ambystoma ambystomatidae amphibian anomaly chordata caudata coastal giant salamander dicamptodon tenebrosus ecology nature north american other5 pacific usa urodela westcoast adult animal biodiversity biology closeup gills herpetology larval macro macrophotography mole natural neoteny newt one outdoors paedomorph predator single tailed vertebrate wild wildlife zoology large neotenic detailed