Introduced from Japan in the 19th century, Japanese knotweed is now an invasive non-native plant of many riverbanks, waste grounds and roadside verges, where it prevents native species from…

Despite popular belief, and its name (from the Old English for 'ear beetle'), the common earwig will not crawl into your ear while you sleep - it much prefers a nice log or stone pile!…

A non-native species originating from Asia, the harlequin ladybird is prevalent in towns and gardens.

Sika deer were introduced to the UK in the 19th century. They are native to eastern Asia.

The UK's largest native grasshopper is also one of its rarest, found only on wetlands in a few parts of England.

One of the longest seaweeds native to the UK, thongweed helps create a beautiful underwater forest to rival that of any on the land!

Bog-myrtle, also known as sweet gale, is a small shrub that is native to wet heaths and bogs across the Northern Hemisphere.

Native oysters are a staple of our seas and our plates - but our love of their taste has lead to a sharp decline all around the UK.

Red squirrels are native to the UK but are a lot rarer than their grey cousins. They live in a few special places across the UK thanks to reintroduction projects.