Freshwater pearl mussels spend their adult lives nestled in the river bed of fast flowing, rocky streams, filter feeding the water.

Escaped or intentionally freed from fur farms in the 1960s, the American mink is now well established in the UK. Its carnivorous nature is a threat to our native water vole and seabird populations…

Heralding spring, a carpet of sunshine-yellow lesser celandine flowers is a joy to see on a woodland walk. Look out for it along hedgerows, in parks and even in graveyards, too, from March onwards…

It’s easy to see where these butterflies get their name – the males have bright orange tips on their wings! See them from early spring through to summer in meadows, woodland and hedges.

The most commonly encountered ray around the British Isles, it's easy to see where the thornback ray got its name from - just check out the spines on its back!

The male whitethroat does, indeed, have a white throat! Arriving from Sub-Saharan Africa in April, it can be spotted on grassland and scrub, and along hedgerows. It is bigger than the lesser…

As its name suggests, quaking-grass can be seen quivering or 'quaking' in a breezy, summer wildflower meadow. Its purple-and-green, heart-shaped flower heads hang from delicate stems.…

The eel is famous for both its slippery nature and its mammoth migration from its freshwater home to the Sargasso Sea where it breeds. It has suffered dramatic declines and is a protected species…

A breeding bird of fast-flowing, upland rivers, the grey wagtail can also be seen in lowland areas, farmyards and even towns in winter.

The whinchat is a summer visitor to UK heathlands, moorlands and open meadows. It looks similar to the stonechat, but is lighter in colour and has a distinctive pale eyestripe.