The endangered field adder (Vipera ursinii) lives in open, grassy areas, although some people also use the name "field adder" to refer to the common European adder when it inhabits fields ...

The Hungarian meadow viper (Vipera ursinii rakosiensis) however, is not large and doesn’t attack. It is rather small and it would rather flee. It’s venom is deadly only to grasshoppers and ...