This broad, brown bug can often be seen sitting on dock leaves.

Barnacles are so common on our rocky shores that you've probably never really noticed them. They're the little grey bumps covering the rocks that hurt your feet when you're…

Brittle stars, sea urchins and other starfish will want to stay out of the way of this speedy carnivorous starfish!

This seagrass species is a kind of flowering plant that lives beneath the sea, providing an important habitat for many rare and wonderful species.

Worms in the sea are anything but dull and this fan worm, resembling a Catherine wheel, is a perfect example of the intricate beauty these animals possess.

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.

This sea snail is abundant on rocky shores around the UK. It is an active predator, feasting on mussels and barnacles before retreating to crevices to rest.

The beautiful pink and white bands of a Painted topshell make it easy to see where this little sea snail got its name!

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

Also known as the flat topshell, these are one of the most common and colourful sea snails you are likely to see when out on a rockpool safari!