southwestern speckeld rattlesnake crotalus mitchellii pyyrhus coiled next to granite boulder in california

animal animals back biology california californian camouflage camouflaged creeping crotalus danger dangerous defense defensive diamond diamondback fangs forked granite herp herpetofauna herpetology herping herps large mitchellii nature orange outdoor pink pit pitviper poison poisonous posture predator pyrrhus rattle rattles rattlesnake rattlesnakes reptile reptiles reptilia reptilian scale scales scaly scary serpent serpents slither slithering snake snakes southern southwestern speckle speckled speckling tongue venom venomous viper wild wilderness wildlife zoo zoology