Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

Why do Scots and Peruvians "talk like children"? The evolution of human accents
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length of sounds
human evolution
natural selection
longitud de los sonidos
evolución humana
selección natural

How to Cite

Monge, J. (2019). Why do Scots and Peruvians "talk like children"? The evolution of human accents. Revista De Biología Tropical, Darwin. Retrieved from


Natural selection has favored the development of a human language so rich in information, that, additionally to meaning, we can also identify the speaker`s sex, emotional state, age, health and social status. Selection has also favored accents and local languages, because they allow the identification of group members (and the exclusion of nonmembers from the group’s resources). The brain uses rules to extract that information, and these rules can fail when applied to alien accents and languages, interpreting, for example, anger or infantilism where there are none.

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