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

The common whelk is the largest sea snail found in UK seas, though you're more likely to find the dry balls of empty whelk egg capsules washed up in strandlines.

The herring gull is the typical 'seagull' of our seaside resorts, though our coastal populations have declined in recent decades.

Native oysters are a staple of our seas and our plates - but our love of their taste has lead to a sharp decline all around the UK.

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

The little grebe is a fantastic diver, but to help it swim underwater, its feet are placed towards the back of its body, making it rather clumsy on land. It only really comes ashore to breed.

This gentle giant is the largest shark in UK seas, reaching up to 12m in length. There's no need to fear them though, they only eat plankton!

The rare natterjack toad is found at just a few coastal locations, where it prefers shallow pools on sand dunes, heaths and marshes.