What do you get when you cross...

...a polar bear and a grizzly bear?

Probably the meanest creature on the face of the earth.

Or this.

DNA Tests Confirm Bear Was a Hybrid

IQALUIT, Nunavut - Northern hunters, scientists and people with vivid imaginations have discussed the possibility for years.

But Roger Kuptana, an Inuvialuit guide from Sachs Harbour, Northwest Territories, was the first to suspect it had actually happened when he proposed that a strange-looking bear shot last month by an American sports hunter might be half polar bear, half grizzly.

Territorial officials seized the creature after noticing its white fur was scattered with brown patches and that it had the long claws and humped back of a grizzly. Now a DNA test has confirmed that it is indeed a hybrid — possibly the first documented in the wild.
...
Polar bears and grizzlies have been successfully paired in zoos before — Stirling could not speculate why — and their offspring are fertile.

Nice!

Of course, being that their offspring are fertile, you know what that means. Let the evolutionary games begin! 10,000 years from now someone's going to dig up a polar bear or grizzly bear. They're going to be like,

"Dude, Fredo. Check out that sweet skeleton in the ground. Wonder what that monster was."?

"You know Tayla, it totally takes after the grizzlar."

"Yeah dude, you're smashingly on."

"Radical."

They'd then declare the excavation site - I mean gravesite - a Global Heritage World Preservation National Conservation Wildlife Ecosystem Park, or something like that.

(Are "Fredo" and "Tayla" futuristic names? Hmm.... How could we possibly know?)