This unassuming orchid is easily overlooked. It is found patchily across the UK, but has been declining for decades.

Europe's largest frog is not naturally found in the UK, but was introduced to Kent and has spread throughout the southeast.

Once a rare visitor to the UK, this striking gull is now found nesting here in large colonies.

This pretty, speckled moth is now a rare sight, found only in a few parts of southern England.

The blackbird of the mountains, ring ouzels can be found breeding on upland moors and rocky crags in summer.

This beautiful moth is often found resting on leaves, though it does also fly during the day.

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

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

Look for the unusual flowers of lords-and-ladies in spring woodlands: a pale green sheath surrounds a spike of tiny, yellow flowers. This spike eventually forms a familiar, short stalk of striking…

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.