portrait of beautiful grass snake - natrix natrix

animal animals background beautiful beauty biology black brown close closeup coldblooded color colorful colubrid colubridae common creature danger dangerous defensive detail european eye fauna grass grasssnake harmless head herp herpetology herping hunting macro natricidae natricinae natrix natural nature nontoxic nonvenomous outdoor pattern poikilothermic poisonous portrait predator protected reptile reptilia reptilian scale scales serpent serpentes serpentine skin slither snake snakes species spring squamata tongue venomous vertebrate water wetlands white wild wildlife yellow young zoology