A rare breeder in the UK, this sooty-coloured bird is as at home on an industrial site as it is on a rocky cliff face.

Ever spotted a honeycomb-like mound on the beach and wondered what it was? It's a reef built entirely by worms!

A diminutive but aggressive predator, the three-spined stickleback hunts tadpoles and small fish. It is also known for fiercely protecting its nest of eggs until they hatch. Look for it in ponds,…

This beautiful beetle is fond of damp meadows and woodland rides, where it's often found on umbellifers or thistles.

One of 2 seahorses found in UK seas, long snouted seahorses are recognisable by their longer snout and fleshy "mane".

This slim fish is usually found on gravelly parts of the seabed, close to shore, but can turn up in rockpools.

Sea lettuce is unmistakeable - most often a bright green and always translucent, it is found on all UK coasts.

One of 2 seahorses found in UK seas, short snouted seahorses are recognisable by their shorter snout - surprisingly enough!

The classic fairy tale toadstool, this red and white fungus is often found beneath birch trees in autumn.

This tiny wading bird is most often seen in autumn, feeding on the muddy margins of wetlands.