Arrowhead is an aquatic plant of shallow water and slow-moving waterways. In bloom over summer, it displays small, white flowers, but it is the arrow-shaped leaves that are most distinctive.

Curled dock is often considered a 'weed'. It can be found near water or on disturbed ground almost anywhere. It is similar to Broad-leaved dock, with which it can hybridise.

This brown seaweed lives high up on rocky shores, just below the high water mark. Its blades are usually twisted, giving it the name Spiral Wrack.

The male purple emperor is a stunning butterfly with a brilliant purple sheen. Look for it feeding around the treetops in woodlands, or on damp ground, animal droppings or even carrion in the…

At night, the pretty, white blooms of white campion produce a heady scent, attracting feeding moths. Look for this wildflower along hedgerows and roadside verges, and on waste ground.

The chocolate-brown, plump dipper can often be seen bobbing up and down on a stone in a fast-flowing river. It feeds on underwater insects by walking straight into, and under, the water.

The starling is a familiar garden visitor that has a beautiful purple-and-green sheen to its black feathers. It is famous for its wintry aerial displays - massive flocks can be seen wheeling over…

A common spider of heathland and grassland, the Nursery web spider has brown and black stripes running the length of its body. It is an active hunter, only using its silk to create a protective…

The shoulders of the Forest bug are distinctive - they are square-cut, almost rounded, unlike the other 'spiked' shield bugs. This bug can be found in woodlands, feeding on the sap of…