A semi-aquatic species, it is found mainly in wetlands, but also in drier areas where it is able to prey on amphibians (frogs, toads, salamanders and newts).
Like all reptiles, it is a protected species!
It can be recognised by its round pupils, its olive-grey skin and its double black and white or yellow neck. Its other distinctive feature: when it feels to be in danger, it spits out a foul-smelling liquid and then plays dead, revealing its two-coloured belly in the pattern of a piano keyboard!