The researcher used audio and video equipment to record the sounds of 50 turtles, a tuatara, a fish and a worm.
Scientist Gabriel Jorgevich-Cohen of the University of Zurich, Switzerland, has discovered that 53 sea creatures previously thought to be silent can communicate. This was reported by BBC News.
In his research, he used microphones to record how different species of animals, including turtles, communicate. The data obtained is amazing. The expert suggests that all vertebrates that breathe through the nose and use sounds to communicate descended from a common ancestor 400 million years ago.
Turtles have been known to make sounds that indicate they are about to leave their nest. They also communicate when they want to mate or hatch from an egg. The Tuatara warn by guarding their territory.
“We know when a bird is singing. You don’t need someone to tell you what it is. But some of the marine animals are very quiet, but they make sounds at different times,” Cohen said. .
He then began to think about what this discovery says about the evolution of animals that make sounds.
The method is based on comparing the behavior of species and displaying them in the form of a family tree. For example, humans and chimpanzees share behaviors such as noise making, suggesting that a common ancestor also made sound.
Thus, the scientist came to the conclusion that all acoustic communication in vertebrates originated from one ancestor 400 million years ago, that is, during the Devonian period, when most species lived under water .
It was previously reported that in less than 50 years, the population of wild animals on Earth has decreased by an average of 69%.
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Source: korrespondent
