This brilliant red and white sea slug would make the perfect nudibranch for a Christmas card image or perhaps a football team mascot!

The hart's-tongue fern is a hardy fern of damp, shady places in woodlands. It also makes a good garden fern. It has simple, tongue-shaped, glossy, green leaves that have orange spores on…

The dark-blue flowers of Common milkwort pepper our grasslands from May to September. It can also appear in pink and white forms.

The magpie is a distinctive moth with striking black and yellow spots on white wings. It is a frequent garden visitor, but also likes woodland, scrub and heathland.

The angel's wings fungus grows in overlapping clusters in the coniferous woods of Scotland and north England. Its funnel-like, white caps have no stems.

A streaky brown bird, the reed bunting can be found in wetlands, reedbeds and on farmland across the UK. Males sport black heads and a white 'moustache'.

These winter visitors are close relatives of the chaffinch and can often be found in the same flocks, where their white rump and nasal calls give them away.

The common cockle is a traditional seaside favourite, both for its white shells often found in the sand and for the yummy snack of cockles doused in malt vinegar.

A summer visitor, the wheatear is a handsome chat, with black cheeks, white eyestripes, a blue back and a pale orange chest. Look for it on upland heaths and moors.

Look for the small, white, star-shaped flowers of Common chickweed all year-round. Sometimes considered a 'weed', it is still a valuable food source for insects.

A notoriously poisonous plant, hemlock produces umbrella-like clusters of white flowers in summer. It can be found in damp places, such as ditches, riverbanks and waste ground.