Twenty thousand years ago, humans lived in grassy tundras near the Arctic Circle. Trees were scare in these cold, dry regions, so Ice Age hunters could not build campfires using wood. Instead, these hardy humans made campfires by burning the bones of the big animals they hunted. Few modern people know how to make a bone fire. Recently, a Colorado archeologist and some volunteers gave it a try. From Longmont, Colorado, Shelley Schlender reports.
The Jaipur Literature Festival began in the city of Jaipur, India. With 300 speakers and over 500 million visitors every year, it is the world's largest free literary festival. The festival also travels internationally. One stop is Boulder, Colorado. Shelley Schlender reports.