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A new study may prove Homo erectus could speak
According to researchers, a human species that lived around two million years ago may have been capable of speech. While the language use of Neanderthals is well documented, the possibility that Homo erectus could speak sheds new light on the origins of human communication and how language might have developed among early human species.
Language is one of the most significant achievements of human evolution, serving as the primary means of transmitting information and forming an essential foundation for social cooperation and culture. Although most researchers agree that Neanderthal communication was based on some form of primitive language, the abilities of earlier human species, such as Homo erectus, in this regard have long been considered far more uncertain.
However, as IFL Science notes, the likelihood that Homo erectus could speak is much higher than previously thought, potentially offering new insights into the development of language and human culture.
Homo erectus, which appeared around two million years ago, was an extremely adaptable species that, according to researchers, possessed all the anatomical and genetic traits that may have been necessary for speech. The study highlights that Homo erectus was the first human ancestor to experience significant brain expansion, with key regions—such as the frontal and parietal lobes—morphologically resembling those of modern humans.
Potential evidence of Homo erectus’ speech capabilities
Although anatomical features alone cannot prove the ability to speak, researchers suggest that the cognitive capacities of Homo erectus may have been sufficient for language use.
Earlier concerns had been raised that early humans’ narrow spinal canals may have prevented the advanced breath control needed for speech. However, some Homo erectus specimens show a spinal cord size comparable to that of Homo sapiens, which could have allowed for complex respiratory control.
