Bottlenose dolphins, the genus Tursiops, are the most common member and well-known family Delphinidae, the family of marine dolphin. Recent molecular studies show the genus contains two species, common bottle dolphins (Tursiops truncatus) and the Indo-Pacific bottle dolphin (Tursiops aduncus), instead of one. Study in 2011 revealed a third species, Burrunan dolphin (Tursiops australis). They inhabit warm seas and being around the world.
Bottle dolphins usually live in clusters of 10-30 members, called pods, but group size varies from single individuals up to more than 1,000. Their diet consists mainly of fish food. Dolphins often work as a team to harvest fish schools, but they also hunt individually. Dolphins use echolocation to find survivors, which is similar to sonar. They emit sound pressing and listen to Echos back to determine the location and shape of the side items, including potential prey. Bottle dolphins also use sound for communication, including creaking and whistles emitted from the spray holes and the sound emitted through body language, such as leaping from the water and slapping their tails on the water surface.
There is a lot of research intelligence dolphin bottle. The study of dolphin mimikri bottles were examined, the use of artificial language, object categorization and self-recognition. Their great intelligence has driven interaction with humans. Dolphin bottle popular from aquarium events and television programs such as Flipper. They have also been trained by the military to locate sea mines or detecting and marking enemy divers. In some areas, they work with local fishermen by driving fish into their nets and eating the fish that escape. Some encounters with humans that is harmful to the dolphins: people hunt them for food, and dolphins killed accidentally as bycatch of tuna fishing.
They are gray, varying from dark gray at the top near the dorsal fin to the gray that is very light and almost white at the bottom. Countershading this makes them difficult to see, both from above and below, when swimming. Adult length ranges between 2 and 4 meters (6.6 and 13 ft), and weigh between 150 and 650 kilograms (330 and 1,400 lb). Men, on average, slightly longer and much heavier than females. In most of the world, the length of an adult is approximately 2.5 m (8.2 ft), with a weight range between 200 and 300 kilograms (440 and 660 lb). Their size varies with habitat. Except in the eastern Pacific, dolphins in the warm, shallow waters tend to be smaller than cold, pelagic waters. A study on the Moray Firth in Scotland, the population of dolphins second most northerly in the world, recorded an average adult length of just under 4 m (13 ft) compared to 2.5 m (8.2 ft) on average in a population off the coast of Florida.
Bottle dolphins can live for more than 40 years. However, a study of the population off Sarasota, Florida shows the average age of 20 years or less.
Their jaws elongated upper and lower forms what is called the pulpit, or nozzle, which gives the animal its common name. Nose, real work is blowhole on its head, nasal septum seen when open blowhole.
Bottle dolphins have 18 to 28 conical teeth on each side of each jaw.
The worm (lobe tail) and dorsal fin are formed of dense connective tissue and do not contain bone or muscle. Animals prompted her to move up and down the worm. Pectoral fins (on the side of the body) are for steering, they contain bones homologous to the forelimbs land mammals. A bottle of dolphin discovered in Japan has two additional pectoral fins, or "hind legs", in the tail, about the size of a pair of human hands. Scientists believe that the mutation caused the ancient trait to reassert itself as a form of atavism.
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