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Imprints of the Past Mastodon and Mammoth Teeth Though linked by a common ancestor, mastodons and mammoths had distinctive teeth adapted for different feeding strategies. Mastodons were browsers. They had molars--each with a cone-shaped cusp on an enamel-covered crown--ideal for chewing leaves and branches gathered by their trunks. Mammoths were grazers. Their molars had ridges, ideal for grinding coarse grasses. Mammoths had upper tusks that could grow more than 16 feet long. They p ...

After battling weeks of bad weather and 20,000 years worth of permafrost, scientists in Siberia have done the unthinkable—excavated a 20,380 year-old woolly mammoth in hopes of cloning these Ice Age giants. Impossible? Perhaps. But just in case the Pleistocene Epoch makes a comeback, you’d better be prepared. First, test your Ice Age I.Q. by playing Seven Steppes to a Woollier Mammoth. Then head to the Mammoth Migration Map a ...