Ancient North American Mammals May Have Gathered in Mexico and Diversified Before Moving to South America, Priming Them to Thrive There https://www.smithsonianmag.com/smart-news/ancient-north-american-mammals-may-have-gathered-in-mexico-and-diversified-before-moving-to-south-america-priming-them-to-thrive-there-180989251/?utm_source=flipboard&utm_medium=activitypub Posted into Smartnews @smartnews-Smithsonianmag