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…

Spiny lobster, crawfish, crayfish, rock lobsters - many names, one animal! This pretty lobster was made extinct in many areas through overfishing, but is now making a slow comeback.

The Great diving beetle is a large and voracious predator of ponds and slow-moving waterways. Blackish-green in colour, it can be spotted coming to the surface to replenish the air supply it…

A key species in the story of conservation, the avocet represents an amazing recovery of a bird once extinct in the UK. This pied bird, with its distinctive upturned bill, can now be seen on…

Despite its name, the large blue is a fairly small butterfly, but the largest of our blues. It was declared extinct in 1979, but reintroduced in the 1980s and now survives in southern England.

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.

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