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Humans were believed to have evolved our unique speaking ability through an evolutionary change in our anatomy, but an analysis of how gibbons sing under the effects of helium gas suggests otherwise.
The study by Japanese scientists demonstrates that Gibbons share the same vocal structure as humans, indicating that humans have simply learned to use our voices in a more complex way.
The study by Japanese scientists demonstrates that Gibbons share the same vocal structure as humans, indicating that humans have simply learned to use our voices in a more complex way.
Thing i'd like to know is..who's idea was it to give them helium..?...it is interesting though..
http://www.telegraph...n-sopranos.html
