This dashing diving duck is a winter visitor to the UK's seas, coastal lakes and occasionally inland water bodies.

Brush through a wildflower meadow at the height of summer and you'll hear the tiny seeds of yellow-rattle rattling in their brown pods, hence its name.

One of the most colourful fish in UK seas, the cuckoo wrasse looks like it belongs in the tropics. Don't be fooled though, it's very much a native species.

One of the UK’s rarest marine species, this giant of the rocky shore is a very special fish.

Look for the small, pink, pea-shaped flowers of Common restharrow on chalk and limestone grasslands, and in coastal areas, during summer.

Herb-robert is a low-growing plant, with small, pretty, pink flowers. Look for it in shady spots in woodland, hedgerows and coastal areas.

Familiar as the bristly plant that easily hooks on to our clothing as we walk through the countryside or do the gardening, cleavers uses its hooks to help it climb and to disperse its seeds.