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

Ever noticed lots of little white spirals on seaweed fronds on rocky shores? These are tiny tube worms!

The stately Grass-of-parnassus displays pretty, white flowers with green stripes. Once widespread, it is now declining as its wetland habitats are disappearing.

The common mussel is a familiar sight on shores all around the UK and is a favourite food of people, seabirds and starfish alike.

The ragworm is highly common on our shores, though rarely seen except by the fishermen that dig them up for bait.

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

Found on rocky shores and seabeds, the Keyhole limpet gets its name from the little hole at the tip of its shell.

With tiger-like stripes, red fins and a humped back, the perch is a striking fish. It can be seen in lowland waterbodies and waterways across the UK, often in shoals.

This sponge is found on rocky shores around the UK and looks like a thick bready crust (if you use your imagination a bit!).

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.