closeup on the endangered olympic torrent salamander, rhyacotriton olympicus, wel camouflaged in a stream

american amphibia amphibian animal biology camouflage camouflaged caudata chordata closeup coast ecology endangerd endangered herpetology macro magnification mountain national nature newt north olympic olympicus one outdoors pacific park photograph predator protected protection rare rhyacotriton rhyacotritonidae roan salamander single small state stream tailed torrent usa vertebrate washington west wild wildlife