![Article Image](https://www.freedomsphoenix.com/Uploads/Pix/533-0620091206.jpg)
Out of the mouths of primates, facial mechanics of human speech may have evolved
• http://phys.org, by Princeton UniversityThe throat and facial movements that twist the air pushing through your vocal cords into words could be rooted in the well-meaning expressions primates exchange with each other, according to two recent studies based at Princeton University.