New research shows grass snakes, which until recently had never been spotted north of the Border, have quietly slithered as far as the Highlands.

These are the locations in the UK where you'll find the country's three native snakes - the Adder, Grass Snake and Smooth Snake.

The Grass Snake is not only the longest in the UK, able to grow up to 150cm, but it can also swim underwater. BBC Countryfile said: "Grass snakes are generally found close to water and can swim ...

Grass Snakes are the largest species in the UK. (Image: Getty Images) These native snakes are commonly found across much of mainland England and Wales, with a small number situated in southwest ...

Find out more about the only snake species native to the UK that can swim underwater, including if it's dangerous, its bite and where it can be… ...

Where to find Grass Snakes in the UK Grass Snakes are commonly found across most of mainland England and Wales, with a small number situated in southwest Scotland.