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!

Considered to be an early sign of spring, the song of the cuckoo sounds the same as its name: ‘cuck-oo’. It can be heard in woodlands and grasslands. Cuckoos famously lay their eggs in the nests…

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

As the name suggests, this shieldbug can often be found on juniper trees. Look out for its distinctive markings.

The UK's largest native grasshopper is also one of its rarest, found only on wetlands in a few parts of England.

One of the only venomous fish to be found in British waters, the lesser weever fish is certainly one to watch out for!

Male capercaillies perform spectacular communal displays in spring, gathering in woodland clearings to parade around, fanning their magnificent tail feathers and making strange gulping and…

Despite its name, the marsh tit actually lives in woodland and parks in England and Wales. It is very similar to the willow tit, but has a glossier black cap and a 'pitchoo' call that…