This small sea snail is easily identifiable by the 3 brown spots on the top of its shell.

Nudibranchs, also known as sea slugs, are much like their land-based relatives that you may spot in your garden. But, unlike your regular garden slug, the nudibranch can incorporate the stinging…

Tawny owls are the familiar brown owls of Britain’s woodlands, parks and gardens. They are known for their ‘too-wit too-woo’ song that can be heard at night-time.

This streaky brown bird is a summer visitor to Britain, favouring open woodlands in the north and west.

Mudwr sy’n teithio'n dda ac mae'r fantell dramor yn cyrraedd yma bob haf o Ewrop ac Affrica. Mae'r glöyn byw oren a du hardd yma’n ymweld â gerddi yn rheolaidd.

The house sparrow is a familiar, streaky brown bird of towns, parks and gardens. Males sport a grey cap and black bib, the size of which indicates their status.

This streaky brown bird is a winter visitor, occasionally found walking around the muddy margins of marshes.

This brown seaweed lives in the lower shore and gets its name from the serrated edges to its fronds.

The dark bush-cricket, as its name suggests, is dark brown or reddish. It can be found in woodlands, hedgerows and gardens throughout summer. Its irregular chirpings are a familiar sound of summer…

A giant of the sea turtle world, leatherback turtles are ocean wanderers searching the seas for jellyfish. Unlike other sea turtles, leatherback turtles don’t mind the cold! This means they can…

As the name suggests, this beautiful brown butterfly is most common in Scotland, though it can also be seen in northern England.