adult
animal
aquatic
biology
chordata
circular
closeup
colubridae
dice
europe
european
eyes
fauna
freshwater
grasssnake
gray
green
herpetology
juvenil
juvenile
lake
macro
moss
natricinae
natrix
nature
nonvenomous
predator
pupil
rattlesnakes
reptile
river
scales
serpentes
serpentine
serpents
skin
snake
squamata
swim
tessellata
water
wild
wildlife
yellow
young
zoology