Pleistocene rewilding The mountain tapir is the only extant non-tropical species of tapir. Predators of mountain tapirs include cougars, bears, and, less commonly, jaguars. Good introduction areas might include forested ecosystems of the west and east coasts, and the more scrub-like or wetland ecosystem of the south. During the Pleistocene, large populations of Proboscideans lived in North America, such as the Columbian mammoth and the American mastodon. The mastodons all became extinct at the end of the Pleistocene era, as did the mammoths of North America. However, an extant relative of the mammoth is the Asian elephant. It now resides only in
Manis Mastodon Site remains the oldest archaeological site on the Olympic Peninsula in Washington State and one of the oldest in North America. In November 2011, Shirley Manis, daughter of discoverer Emanuel Manis, authored the first and only children's picture book about the Manis Mastodon Site, which includes the most recent research analysis. Manis Mastodon Site The Manis Mastodon site is a archaeological site on the Olympic Peninsula near Sequim, Washington, United States. During the dig, the remains of an American mastodon was recovered which had a 13,800 year old projectile made of the bone from a different mastodon embedded in its rib.