adder
aggressive
animal
basking
beautiful
bite
brown
closeup
colorful
danger
dangerous
deadly
endangered
european
fauna
ground
habitat
herpetology
hungarian
juvenile
meadow
nature
poison
poisonous
predator
protected
rakosiensis
rare
reptile
reptilian
romania
scales
scary
snake
species
strike
threatened
toxic
toxicity
transylvania
ursinii
venom
venomous
viper
vipera
viperinae
wild
wildlife
young
zoology