A large male Edible Crab (or Brown Crab) Cancer pagurus, sitting out in the open on top of a reef. The male is identified by its heavy, massive claws which are significantly larger than those of the female. Once a crab reaches this size it has little to fear from predators and can wander about foraging with impunity. It will feed on carrion and by smashing up mussels and other shellfish.
St Abbs Marine Reserve, Berwickshire. E. Scotland