North American Neomastodon

The North American neomastodon is a future descendant of Asian elephants that survived and either escaped from zoos long ago or have spread into North America through a land bridge between Siberia and Alaska. They are one of the major herbivores of the North American savannas (similar to today's African Serengeti), feeding on mainly grass and grass, while also keeping the tree's spread in check like African elephants in Africa today. They are named because they fill a similar niche to the prehistoric American mastodons of the Pleistocene. They are also sligtly larger than today's African elephants, making them the largest of the elephants in the future.