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
Fish ball can also be used. The proportions depend on the quality and type to be made. The white fish balls found in some traditional Hong Kong restaurants are made using fresh fish; while street style are made using cheap fish and a mixture of flour to reduce costs. Flathead mullet (九棍魚/烏仔魚) and Daggertooth pike conger (門鱔) are common choices. Originally, to reduce costs, they were likely made by mixing and frying the remaining materials of Chaozhou fish ball (潮州白魚丸) or stale fish. More recently, they began to be imported and nowadays, they are mainly imported by wholesalers and the texture is