This colonial creature looks like an old-fashioned quill - that's where the name sea pen comes from.

The black sea bream really is a fascinating fish. From sex changes to nest building, this fish is full of surprises!

This large round urchin is sometimes found in rockpools, recognisable by its pink spiky shell (known as a test).

Found around our coasts during the breeding season, the large Sandwich tern can be spotted diving into the sea for fish such as sandeels. It nests in colonies on sand and shingle beaches, and…

This strange furry creature often found washed ashore after storms is actually a kind of worm!

These little critters are related to the woodlice you find in your garden and play a very important role on rocky shores.

These mat like growths found on kelp and seaweed are actually colonies of tiny individuals animals.

The ptarmigan is a master of disguise - matching its Highland surroundings perfectly by turning snow-white in winter and rock-grey in summer. It is confined to the mountains of Scotland, so is…