Dec 012015
 

Humans, birds common sound mechanism

Birds and humans have evolved completely different organs for producing voice. But new research suggests that humans and birds use exactly the same physical mechanism to move their vocal cords and thus produce sound.

In the human voice box, or larynx, air from the lungs is pushed past the vocal cords, which then start moving back and forth sideways like a flag fluttering in the wind.

Contributed By Sonia Narula

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