This is literally so cute

No it's a dirty polar bear. Don't expect them to be totally white in all this filth

It's a brown bear, most likely a Grizzly or Kodiak. You can tell by the shape of it's head. Polar bears have leaner skulls and longer snouts.

https://mlpforums.com/uploads/post_images/img-694491-1-YSkZb.png