MSNNews
05-10-2006, 02:19 PM
National Geographic - New findings suggest that an ongoing, epic whodunit may actually be a what dunit. That is, climate change, not humans, may be what killed off Ice Age mammoths, horses, and other large animals in North America. (For the previous plot twist, see "Ice ... {br}{br}View the Entire Article (http://news.nationalgeographic.com/news/2006/05/ice-age.html){br}