The gatekeeper is on the wing in summer on grasslands, in woodlands and along hedgerows. Look out for the large, distinctive eyespot with two 'pupils' on each forewing.

The stately grass-of-parnassus displays pretty, white flowers with green stripes. Once widespread, it is now declining as its wetland habitats are disappearing.

Look out for the bright red eyes of this speedy crab in rockpools - but be careful, they're notoriously feisty and will give a painful nip!

The pungent, rotten smell of Black Horehound makes this medium-sized plant of waste ground and roadside verges stand out from the crowd.

Look out for the small, yellow flowers of Celery-leaved buttercup in wet meadows and at the edges of ponds and ditches. It flowers from May to September.

The unpleasant, astringent smell of Hedge woundwort makes this medium-sized plant of woodlands, hedgerows and roadside verges stand out from the crowd.

A small, tufted fern, maidenhair spleenwort can be found growing out of crevices between rocks, in walls and on mossy branches across the UK.

Look out for the distinctive white beak that gives this energetic dolphin its name. Don’t be surprised to see them breach and bowride too!

In mild years, the spring-flowering primrose can appear as early as December. Look out for its pretty, creamy-yellow flowers in woodlands and grasslands.

The marsh hair moss is the largest moss in the UK. Look out for it in damp woodland and on boggy heathlands where it forms large, green and spikey 'cushions'.

Listen out for the 'chattering' song of the reed warbler, while wandering the UK's lowland wetlands in summer. A small, brown bird, they are quite hard to see.