There are only three types of snakes native to the UK - an adder, a grass snake and a smooth snake. An interactive map published in 2023 showed the number of snake sightings in and around the UK ...

The adder is a greyish snake, with a dark and very distinct zig-zag pattern down its back, and a red eye. The adder is the UK's only venomous snake, but its venom is generally of little danger to ...