Dolphins, the most intelligent creatures after humans, call each other through a unique hiss, which they use in an environment when there are many other dolphins around.
The idea that dolphins have specific names and call each other with sounds was popular in the 1960s, and these studies have shown that other animals also respond to these sounds.
Today, the theory is developed and states that a dolphin will react when it hears the specific sound it identifies with, to indicate its presence and seems to say, “Yes, here I am! Did you call me?", says Whitney Friedman, an expert on dolphin behavior at the University of California.
Also, in a study published July 22 in the Proceedings of the National Academy of Sciences, there is compelling evidence that dolphins use the unique sound and hiss as a proper name.
After a research carried out in the east of Scotland, a group of scientists followed some wild dolphins, recorded their sound and when they placed it, one of the dolphins reacted. Then, the team played the same sound and the same dolphin reacted again, as if to say, "Here I am!".
Suggested articles:
