The Importance of Early Vocal Development

The former CDC lead in China now admits that it could well have begun in China. Researchers at the University of Memphis say that boys are more likely to produce these speech-like vocalizations in their first 18 months than girls are. And it's apparently all to do with boosting their survival rates. NASA have been studying UFOs. We'll find out what they're looking for and why, and we'll also find out later what causes allergies and what we can do to make them more tolerable.