141943 Bottle-nosed Dolphin Tursiops truncatus Length 2.5-4m Bulky, muscular dolphin. Social, found in schools of 3-4 animals. Diet includes fish, crabs and shrimps. Playful at the surface. Adult is greyish-brown overall, darkest above and palest on throat and belly; mid-grey band is sometimes seen on flanks. Beak is rather short and blunt (fancifully bottle-like) with lower jaw extending beyond upper one. Flippers are rather long and pointed and dorsal fin is tall, curved backwards and almost shark-like.