adder
animal
beautiful
brown
closeup
colorful
danger
dangerous
deadly
endangered
europe
european
fauna
forked
ground
habitat
head
herpetology
hungarian
iucn
lethal
meadow
nature
poison
poisonous
predator
protected
rakosiensis
rare
reptile
reptilian
romania
scales
scarce
scary
snake
species
threatened
tongue
toxic
toxicity
transylvania
ursinii
venom
venomous
viper
vipera
wild
wildlife
zoology