After reintroducing the American bison to Flint Hills, which had been eradicated from the land in the mid-1800s, the Great Plains is one step closer to restoring part of an ecosystem that once stretched from Texas to Minnesota. As they return, researchers gain insight into their ecological value.

Source:  https://www.inverse.com/article/52602-bison-are-back-and-that-benefits-many-other-species-on-the-great-plains?utm_source=facebook.com&utm_medium=on_site&utm_campaign=desktop_article-top