How the Hyoid Bone Changed History


	How the Hyoid Bone Changed History

wildcat

2-5-2008 7:48 AM

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evolution

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2-5-2008 10:43 AM

bignosemousie

The hyoid bone, which is the only bone in the body not connected to any other,

The hyoid bone's connected to the ....nothing.

I love learning new things, thanks wildcat.

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Our gift of the gab is all due to a small horseshoe-shaped bone suspended in the muscles of our neck, like a piece of fruit trapped in Jell-O.
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The hyoid bone, which is the only bone in the body not connected to any other, is the foundation of speech and is found only in humans and <A href="http://www.livescience.com/history/071102-hn-red-hair.html">Neanderthals</A>. 
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Other animals have versions of the hyoid, but only the human variety is in the right position to work in unison with the larynx and tongue and make us the chatterboxes of the animal world. 
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Without it, we'd still garble and hoot much like our <A href="http://www.livescience.com/health/070223_chimp_split.html">chimpanzee cousins</A>, scientists say.
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Humans likely had the capability to speak similarly to the way we do now about 300,000 years ago, based on discoveries of ancient hyoids. Alongside the hyoid, another important anatomical change happened around the same time that really kicked speaking into high gear – the larynx drop.
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