Original sentence: Homotherium is a genus of machairodontine saber-toothed cats, often termed scimitar cats,  that lived approximately 5 million to 10,000 years ago in North America, South America, Eurasia and Africa.The last scimitar cat survived in North America until 10,000 years ago
Edited sentence: Homotherium is a genus of machairodontine saber-toothed cats, often termed scimitar cats,  endemic to North America, Europe, Asia, and Africa during the Miocene epochs (13.6 mya—300,000 years ago), existing for approximately.The last scimitar cat could have survived in North America until 10,000 years ago