The adder is one of the most widespread venomous snakes in Europe. Although it does not attack humans, it sometimes bites in self-defense. It lives in wetlands and woodlands but is also found in the mountains. On sunny days you can find adder lounging in the sunshine.
In the mountains, it can be found at elevations of up to 2000 meters above sea level.
Young adders mostly eat insects, snails, earthworms, young amphibians and reptiles. The viper attacks its prey by injecting its venom and then eats the dead one.
In doing so, they collect the scent around them and then transfer it to their mouth cavity to the so-called Jacobson’s organ, which analyzes olfactory signals.
This means that the young remain in egg membranes inside the mother’s body and hatch just before, during, or immediately after laying their eggs.
Mating usually begins in late April or early May and birth occurs in August or September. Freshly hatched reptiles gain complete independence.
Venom is injected in about 50 percent of bite cases.