Play our new online crab-hunting game here:
Click here to play
Green shore crabs are one of the most common crab species found in rock pools around the UK, and are a highly invasive species around the world. The appearance of juvenile crabs varies considerably, and they can even alter their appearance to match their backgrounds. In this game you need to find the photographed crabs as quickly as possible against their natural rock-pool backgrounds, generating valuable data for us on how humans learn to find camouflaged prey.
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