But in a published commentary on the research,Simon Fisher, a speech and language researcher at the Wellcome Trust Center for Human Genetics at Oxford University cautions that before researchers can develop a drug therapy for stuttering,they will need to learn much more about the precise biochemical mechanism of the disorder.

VOA: standard.2010.02.11

Yet their genetics have caused pandas to develop more slowly than human beings and other mammals.

VOA: special.2010.01.19

Their work reveals a lot about songbird genetics, and opens a new door to understanding the basis of human speech.

VOA: standard.2010.04.05