Grass snake

Yellow spots on the back of its head

Grass snake, photo Jussi Helimäki

The grass snake (Natrix natrix) can usually be seen slithering in shore areas, but it can also be encountered in the middle of forests. It has distinct yellow-gold spots on its neck.

The grass snake preys on frogs, tadpoles and fish. It also hunts in the water. The grass snake lays its eggs in rotting clusters of kelp, which produce heat as they decompose.