Coryphodon (SciiFii)

Coryphodon eocaenus, also known as the saber-toothed hippopotamus or saber-toothed hippo, is a medium-sized pantodont which originally lived in North America during the Late Paleocene to Middle Eocene, and was once extinct, but has since been brought back from extinction by SciiFii, and was introduced to modern swamps of both North and South America to help boost biodiversity.