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

Considered Britain's most threatened butterfly, the high brown fritillary can be only be found in a few areas of England and Wales.

Look for Water avens in damp habitats, such as riversides, wet woodlands and wet meadows. It has nodding, purple-and-orange flowers that hang on delicate, purple stems.

Look for wood avens along hedgerows and in woodlands. Its yellow flowers appear in spring and provide nectar for insects; later, they turn to red, hooked seedheads that can easily stick to a…

A small fish found on rocky shores in the south and west of Britain.

This dazzling dragonfly, also known as the blue-eyed hawker, is a recent arrival to Britain.