Dolphins range in size from the 1.7-metre-long (5 ft 7 in) long and 50-kilogram (110-pound) Maui's dolphin to the 9.5 m (31 ft 2 in) and 10-tonne (11-short-ton) killer whale.  Injuries or deaths due to collisions with boats, especially their propellers, are also common.  A modern human-dolphin partnership currently operates in Laguna, Santa Catarina, Brazil. Shortly after the Order of the Dolphin meeting, Lilly began incorporating ketamine and LSD (legal at the time) into his experiments, hoping it would help him communicate better with dolphins. A well-known historical example of a dolphin in heraldry, was the arms for the former province of the Dauphiné in southern France, from which were derived the arms and the title of the Dauphin of France, the heir to the former throne of France (the title literally means "The Dolphin of France").  In "shelling", a dolphin brings the shell to the surface and shakes it, so that fish sheltering within fall into the dolphin's mouth.  They showed dolphins real-time footage of themselves, recorded footage, and another dolphin. What's Killing Bottlenose Dolphins? They have also been known to trap their prey on the shore, stranding themselves in order to feed on stranded prey ("strand feeding").  Dolphins are sensitive to vibrations and small pressure changes. An auditory experience influences the whistle development of each dolphin. The term mereswine (that is, "sea pig") has also historically been used. Whistle repertoire analysis of the short beaked Common Dolphin, "Dynamics of Dolphin Porpoising Revisited", "Bubble Ring Play of Bottlenose Dolphins (, Amazing footage of a dog playing with a dolphin off the coast of Ireland, "Apparently Dolphins in Australia Like to Get Stoned by Chewing on Toxic Blowfish", "Do Stoned Dolphins Give 'Puff Puff Pass' A Whole New Meaning? A dolphin’s life in the wild is rich and full of choice. Loud underwater noises, such as those resulting from naval sonar use, live firing exercises, and certain offshore construction projects such as wind farms, may be harmful to dolphins, increasing stress, damaging hearing, and causing decompression sickness by forcing them to surface too quickly to escape the noise.. , Dolphins also display culture, something long believed to be unique to humans (and possibly other primate species). Wholphin needs to reach mental maturity and develop proper maternal instincts (around the age of 9 years) in order to become successful parent. , Dolphins are known to display non-reproductive sexual behavior, engaging in masturbation, stimulation of the genital area of other individuals using the rostrum or flippers, and homosexual contact. , Dolphins can tolerate and recover from extreme injuries such as shark bites although the exact methods used to achieve this are not known. 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