European adder

What does European adder look like?

A stout snake (~60 cm) with a bold dark zigzag stripe down the back and vertical (cat-like) pupils. Britain's and much of Europe's only native venomous snake.

Is European adder dangerous?

Venomous. Bites are painful and need medical attention but are rarely fatal, and it only strikes when trodden on, cornered, or handled.

Commonly confused with

• Grass snake: no zigzag, round pupils, often a yellow collar — harmless

What should I do about European adder?

Back away and never handle it. Seek medical care promptly if bitten, and keep the bitten limb still.