African lions introduced into North America, success or not?

[sverre054]

Would Siberian tigers survive in Alaska?

Totally. There have been rumors over the years, of random tigers being loose in Alaska. Bering land bridge was around, not too long ago.

 

[sverre054]

Pound for Pound the Jaguar is much tougher and stronger but the sheer size of the African Lion would overwhelm the Jaguar pretty damn easily. A big Jag can get up to about 250lbs, a Big Lion and you're looking at north of 600lbs here. Like trying to have 2007 Floyd Mayweather square off against 1988 Mike Tyson.

Fun fact: Jaguars are native to the USA, and still live in small numbers in the SW around the border. Up until a few hundred years ago, they were found as far north as the Grand canyon, all the way up to the San Francisco, and even the SE.

 

[GSP_37]

Snakes, wolves, mountain lions, alligators not enough? Revive some dinosaurs too while you're at it.

 

[Ralph Wiggum]

They would evolve to better survive in their new environment :