Sperm whale the line, sparing the whales the need to hunt. However, the amount of fish taken is very little compared to what the sperm whale needs per day. Video footage has been captured of a large male sperm whale "bouncing" a long line, to gain the fish. Sperm whales are believed to prey on the megamouth shark, a rare and large deep-sea species discovered in the 1970s. In one case, three sperm whales were observed attacking or playing with a megamouth. The sharp beak of a consumed squid lodged in the whale's intestine may lead to the production of ambergris, analogous
Crab meat and the animal is then returned to the water. The practice is defended because some crabs can naturally autotomise (shed) limbs and then about a year later after a series of moults, regenerate these limbs. In Western Europe crab meat is derived primarily from the species "Cancer pagurus". "C. pagurus" is a large crab noted for the sweet, delicate flavour of its meat. It is also known as the "Brown Crab", the "Common Crab" or the "Edible Crab". The United Kingdom is the largest fishery for "C. pagurus" with large fisheries in Scotland and a smaller but substantial fishery in