VIDEO: Dolphins Give Each Other Unique Names
"When they hear a dolphin they know, they often quickly approach the speaker playing the recording," Bruck explained. "At times they will hover around, whistle at it, try to get it to whistle back."
In one notable example, a female dolphin named Bailey, now aged 24, heard the signature whistle of another female named Allie, whom she had not seen in more than 20 years. The two females used to share digs at Dolphin Connection in the Florida Keys.
Bailey appeared to be thrilled to hear the recording of her old buddy, and tried to communicate back.
There is little doubt that relationships among these animals are deep and meaningful. The findings also indicate that these are highly intelligent animals capable of very complex mental processing.
Their communications are equally complex, such that Bruck and some other researchers now wonder if dolphins have their own language. The creation and possession of language has never technically been applied to any species other than humans.