adder
amphibian
animal
armour
attack
eye
fang
food
frog
hunting
inject
injection
juvenile
keeled
lizard
looking
lunge
nature
newt
orange
pit viper
poisonous
predatory
prey
protection
pupil
red
reptile
reptile eye
reptile scales
reptile skin
scales
slit
snake
snake head
snake isolated
strike
toad
venomous
vertical
viper
viper snake
vipera berus
wildlife