A handsome fish, the tench has olive-green flanks, powerful fins and distinctive red eyes. It can be found in lowland lakes and slow-flowing rivers around the UK.

A recent colonist to south east England, the metallic-green willow emerald damselfly spends much of its time in the willow and alder trees that overhang ponds, lakes and canals.

The hare's ear is a cup-like fungus that grows in clusters in broadleaved and mixed woodland, often near to the path. Its orange colour makes it quite conspicuous in the leaf litter.

The Greater butterfly-orchid is a tall orchid of hay meadows, grasslands and ancient woodlands. It has whitish-green flowers that have spreading petals and sepals - a bit like the wings of a…

The noble chafer is a rare and beautiful metallic-green beetle that can be found in traditional orchards. It is on the wing over summer, feeding on umbellifers. The larvae live in the decaying…

Groundsel is a 'weed' of cultivated and disturbed ground like field edges, roadside verges and waste ground. It has clusters of yellow flowers that turn fluffy and white as the plant…

Also known as 'Scorpion-grass' because of the curved 'tail' at the end of its stems, Water forget-me-not is a distinctive plant of damp habitats. Over summer, it produces…

The courtship of the marsh harrier is certainly a sight to behold - wheeling and tumbling through the sky, male and female partners lock talons in mid-air. Look out for this rare bird over…

The whooper swan is a very rare breeding bird in the UK, but has much larger populations that spend winter here after a long journey from Iceland. It has more yellow on its yellow-and-black bill…

Cuttlefish are related to squids and octopuses – a group of molluscs known as cephalopods. You may have seen the chalky internal shell, called a cuttlebone washed up on beaches around the UK.…

Hogweed can be found along hedgerows and roadside verges, and on waste ground and rough grassland. It displays umbrella-like clusters of creamy-white flowers. It's native, unlike its relative…