Researchers working in Shark Bay, Australia, have found that male dolphins use unique names for each of their dolphin allies.
The discovery, made by scientists at the universities of Zurich and Western Australia, gives an insight into their social networks.
“These individual vocal labels, or ‘names,’ allow the animals to develop complex social relationships,” said lead scientist Dr. Stephanie King.
According to the research, published in the journal Current Biology on June 7, unrelated males team up in two or three, which is thought to improve their chances of breeding with females.
They create unique whistles for each other that are like a name.