The strikingly coloured electric-blue European lobster was caught off the east coast of Scotland and spotted at a London fish market in November 2011. It was sent to the Natural History Museum before settling into a new home at the London Aquarium. European lobsters are dark blue with yellowish spots and cream-coloured undersides. They have huge claws - the larger is known as the 'crusher' claw, and the other, more slender, the 'cutter' claw. This specimen probably hatched out with this colour as a result of a rare genetic variant.