the aesculapian snake (zamenis longissimus, elaphe longissima) close-up

aesculapian snake aesculapius animal brown clammy close closeup cold blooded creeping environment europe eye fauna forest green habitat head herpetology longissima longissimus macro face medicine nonvenomous outdoor portrait rare reptile eyes pattern skin texture reptiles reptilia road serpent serpentes crawling resting squamata summer symbol crawl wild wildlife zamenis elaphe close-up dry leaves