In Brief
Bottlenose dolphins in Africa use signature whistles to identify each other, say scientists investigating dolphin communication
  • Most dolphin species rely on a wide variety of sounds in their day to day lives. They use sound to find food and navigate, as well as communicate with each other
  • Fairly common among many bird species and humans, this ability, termed vocal production learning, makes them quite special amongst mammals
  • These signature whistles are exchanged by groups of dolphins when they meet at sea and are used to address each other, similar to how humans use names