Green sea urchin
This small, round sea urchin is (unsurprisingly!) green in colour and can be found on rocky shores around the UK.
Water vole by Terry Whittaker/2020VISION
This small, round sea urchin is (unsurprisingly!) green in colour and can be found on rocky shores around the UK.
Be a nature detective! Can you tick off any of these?
This large round urchin is sometimes found in rockpools, recognisable by its pink spiky shell (known as a test).
Colour in the wonderful things that live under the sea.
Sea potatoes may have a funny name, but they are perfectly adapted for life in the sand. They are a type of sea urchin that live in a burrow in the sand, feeding on dead animals and plants using…