The bottlenose dolphins which is considered to be the toothed whale, they will spend most of there time in little groups called a pod. In a pod there will be about 15 or less dolphins. Different dolphins will run into each other and i think from there on will be a big pod. under water the dolphins have there own signature whistle and when the mother and its calf the mother may whistle continuously over and over again until the calf can identify the mother. Then they can mimic one another's signature. biologists have realized that one dophine says its signature and then another dolphine whistle an identical response. Dolphins can see the human skeleton and heart they take interest in a pregnant women because they see the kid in the woman. Dolphins are said to have helped people get to the shore and to scare sharks away.
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