A group of Japanese researchers discovered that two groups of monkeys of the same species that were separated and lived in different areas, had a different form of expression
A new study has revealed that monkeys, like humans, have differences in their idioms that are influenced by where they live. The study was conducted by a group of scientists at the Mammal Research Institute at Kyoto University in Japan. "The differences in monkey chatter are like the differences in human dialects, they have a different accent," explained Professor Novo Masataka, an anthologist who is a member of the research team to Sky news.
For 10 years, between 1990 and 2000, the researchers followed two groups of monkeys of the same species - Japanese cockroaches. The first group included 23 individuals living in the southern part of the island of Yakushima. The second group had 30 monkeys, which are descendants of monkeys that were transferred from that island to a habitat on Mount Ohira in central Japan as early as 1956.
The results of the observations and tests showed that the isolated group that lives on the island communicates with sounds higher than 110 Hz on average than the other group, that lives on the mountain. Professor Masataka estimates that the voices of the monkeys on the island are loud, because there are tall trees there that block their voices. "Each group adopted the way of speaking according to their environment and the conditions they have."
The results of the study also make it clear that the accent originates in the place of residence and not in the gardens. The scientists hope that the research can add clues in the attempt to trace the origin of human language.
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