Did you know we have colourful corals in UK seas? Pink sea fans are a type of horny coral - related to the sea fans found in the tropics. Don't be fooled by their name though, pink sea fans…

Although, commonly referred to as a ‘sea snail,’ this species in fact belongs to the fish family!

This small, round sea urchin is (unsurprisingly!) green in colour and can be found on rocky shores around the UK.

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

The lightbulb sea squirt is common around much of the UK. Its easy to see where its name came from!

A small colourful sea slug that can be found grazing on sea mats on the rocky shore and beyond the low water mark.

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.

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

One of 2 seahorses found in UK seas, long snouted seahorses are recognisable by their longer snout and fleshy "mane".