Sperm whales seem to announce themselves using a unique click sequence, or coda. This find doesn't come out of the blue. In 2006 scientists discovered that bottlenose dolphins develop individual whistles very early in life.
Sperm whales seem to announce themselves using a unique click sequence, or coda. This find doesn't come out of the blue. In 2006 scientists discovered that bottlenose dolphins develop individual whistles very early in life.