[quote=LimeyPanda]
The Polar bear is considerably larger than a Grizzly.
[/quote]

We here in 'Murica don't accept the metric system, so grizzlies are by far the larger bear 'cause everything in 'Murica is bigger than anything else. And we also, here in 'Murica, have determined that the polar bear is technically extinct and doesn't matter anymore because we can no longer make money off of seeming like we care about them.