The river lamprey is a primitive, jawless fish, with a round, sucker-mouth which it uses to attach to other fish to feed from them. Adults live in the sea and return to freshwater to spawn.

Seabass is a seafood favourite, appearing on menus throughout the UK. But it's in trouble in UK seas, with much of the seabass we eat imported from European fish farms.

Did you know that there are coral reefs in the UK? UK seas are home to some amazing cold-water corals that form reefs on the seabed over 400m deep.

Sugar kelp is the crinkly belt like kelp that can often be found in deep rockpools on the lower shore or washed up on the beach after rough seas.

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…

Guillemots really know how to live life on the edge – quite literally! They nest tightly packed on steep ledges and cliffs around the coast. This may sound like a strange nesting spot, but it…

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.

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

The wild rock dove is the ancestor to what is probably our most familiar bird - the feral pigeon, which is often found in large numbers in our towns and cities.

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.