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…

Britain's largest 'diving beetle' is an impressive creature, though it's not easy to find.

A common spider of heathland and grassland, the Nursery web spider has brown and black stripes running the length of its body. It is an active hunter, only using its silk to create a protective…

Risso’s dolphins are mysterious creatures usually only found in deep, offshore waters.

This colonial creature looks like an old-fashioned quill - that's where the name sea pen comes from.

This strange furry creature often found washed ashore after storms is actually a kind of worm!