Crowley's Ridge Mastodon March 10, 2010

Over 10,000 years ago, Arkansas was home to a wide variety of large animals, including mammoths, mastodons, llamas, and giant beavers. These giant creatures died out at the end of the last major ice age, a time when large mammals became extinct all over the world. Possible causes for this major extinction include climate change brought on by retreating glaciers and competition from another predator that began to cover the globe: humans.