Abstract
The ability to speak is uniquely human. Although other species are capable of communicating with each other, the use of speech is a distinguishing feature of Homo sapiens. Is it possible that this trait is determined by specific genes? This question has been debated by linguists for many decades, and both sides of the argument have vocal supporters. The recent isolation of a gene that appears to be critical for the normal acquisition of language is a remarkable achievement and important to clinicians and researchers alike.
Published Version
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