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Illinois State Museum: The Midwestern United States 16,000 Years Ago
What did Northern America look like 16,000 years ago? Were the plants the same? What happened to the mastodons and the saber-toothed cats? Here's a short website that is easy-to-understand and supplies at least some of the answers.
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Denver Museum of Nature and Science: Ice Age Giants Coloring Pages [Pdf]
Printable coloring sheets of Ice Age animals, such as the dire wolf, the giant beaver, the American mastodon, and the saber-toothed cat.