western ratsnake pantherophis obsoletus on boulder

also animal animalia animals biology black blackratsnake blacksnake boulder coiled colubrid colubridae colubrids forked granite harmless herp herpetofauna herpetology herping herps know nature non nonvenomous obsoletus outdoor pantherophis pilot pilotsnake predator ratsnake reptile reptiles reptilia reptilian scale scales scaly serpent serpents slither slithering snake snakes squamata squamate tongue venomous vertebrata vertebrate western wild wildlife zoo zoology