http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Professor Alice Roberts journeys 40,000 years back in time on the trail of the great beasts of the ice age. She learns the moving story of a mother mastodon; from her tusks, scientists can tell how many calves she had and whether they reached adulthood. This evidence, together with harrowing injuries on other skeletons, tells a perplexing story of a species on the edge of extinction - mastodons were turning on mastodons. The woolly rhino tells another story. Believe it or not, the one thing it couldn't stand was snow - which stopped it from getting enough grass. During the ice age in Europe and Siberia, snow was thin on the ground as so much water was locked up in the ice sheets. But when the ice ended, the snows increased, rhinos found themselves stuck and their little legs were unable to get them out of trouble.
Title from resource description page (viewed Nov. 21, 2014).