[denydenydeny]

The sabre-tooth tiger, whose fossils are found across North America and parts of South America, became extinct only 10,000 years ago. Not agile enough to catch smaller animals, it seems that it died out when its favoured large prey became rarer at the end of the most recent Ice Age.

The author doesn't mention that this coincided with the coming of humans to North America. You know, those eco-friendly Native Americans who lived in complete harmony with nature.

[Lucius Cornelius Sulla]

You know, those eco-friendly Native Americans who lived in complete harmony with nature.

Apparently the Amerindians killed all of the megafauna except for the Bison, leaving the Smilodons nothing to eat (probably too slow for the Bison). They were outcompeted and had to go.