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Dolphin Information

Dolphins live in unique societies, in which there are several subgroupings of individuals. The groups are fluid, with smaller subgroups being more stable. The stability of the subgroups is thought to promote social bonds between individuals. Individuals within these groups are often out of sight of each other, and therefore need a way of maintaining communication.

Dolphins produce three types of sounds: broadband clicks used in echolocation; broadband burst pulses; and whistles. Whistles are frequency modulated narrow bands of sound, which are thought to be used as a nametag for each individual dolphin (Caldwell, Caldwell and Tyack 1990). Caldwell et al. (1990) described a hypothesis in which captive dolphins would produce individually distinctive and stereotyped whistles. These whistles were named signature whistles due to their individually distinctive features.

For more information about dolphins, see links to the right.

Dolphin Info:  
» Dolphin Facts  
» Dolphin Body  
» Dolphin Species  
» Dolphin Behavior  
» Communicating  
» Dolphin Diet  
» Eating Methods  
» Dolphin Evolution  
» Breathing  
» Dolphin Intelligence  
» Dolphin Interacting  
» Pink Dolphin  
» Body Language  
» Sleeping  
» Social Behavior  
» Vocalizing  
» Dolphins & Whales