[onedoug]

...a similar extinction much more recently: just 13,000 years ago....

Then how come there were mammoths, sabertooths and humans in Los Angeles some 9,000 years ago?

[Red Badger]

Then how come there were mammoths, sabertooths and humans in Los Angeles some 9,000 years ago?

Illegal aliens?.........

[count-your-change]

Because this is L.A., not Chicago, and we don’t care how they do it in Chicago!

[qam1]

...a similar extinction much more recently: just 13,000 years ago....

Then how come there were mammoths, sabertooths and humans in Los Angeles some 9,000 years ago?

The Columbian Mammoth
The Columbian Mammoth was one of the last members of the American Megafauna to become extinct, with several specimens dating to 9,000 years ago or less and one near Nashville, Tennessee, reliably dated to only about 7,800 years ago.

This study is laughable, it's a Liberal's wet dream

It's

1) Anti-Nuclear
2) Pro-AGW
3) Pro-Noble Savage