Beautiful demoiselles are, well, beautiful! Often confused for a dragonfly, these giants of the damselfly world are hard to miss with their metallic blue and green colours.

The nuthatch is a tit-sized, grey and rust-coloured bird that can be easily spotted climbing headfirst down tree trunks in woodlands and parks.

The water scorpion is not a true scorpion, but it certainly looks like one! An underwater predator, it uses its front pincer-like legs to catch its prey. Its tail actually acts as a kind of '…

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

This dazzling dragonfly can be seen darting above tree-lined ponds in certain parts of Britain.

The common walnut tree produces a large, brown nut that is familiar to so many of us. It is an introduced species in the UK, and can be seen in towns, gardens and parks.

This small, white heron is an increasingly common sight in parts of the UK as it spreads north from continental Europe.

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

The Marsh helleborine is a beautiful orchid of fens, wet grassland and dune slacks. Growing in profusion in places, look for reddish stems and white-and-pink flowers.

Red squirrels are native to the UK but are a lot rarer than their grey cousins. They live in a few special places across the UK thanks to reintroduction projects.

The delicate, tube-like, violet-blue flowers of Skullcap bloom from June to September in damp places, such as marshes, fens, riverbanks and pond margins.