Curly, wavy or straight, long or short, we tend to do a lot with our hair. It grows about half an inch a month. Most of us just cut it off, and throw it away, or should we?Our first stop is in the Department of Environmental Sciences at Cal, where CBS News Bay Area met up with ecosystem ecologist Dr. Whendee Silver and visiting scholar Dr. Tibisay Perez.
CBS News Bay Area went to an open field at the National Park, and met up with Lewis Stringer, Associate Director of Natural Resources at the Presidio Trust. The ecologist showed us where the experiments were located and the growth is quite impressive.'We just scattered it over these tiny plants that were barely growing.