So, it doesn't appear to be an isolated event. There are also reports of young grizzly bears and wolves playing with each other, and even hunting together. Though the grizzly usually runs off the wolves when it comes down to which gets the kill.

Inane joke aside, the "lonely" comments made by other people on this deal are, in my perception, probably fairly accurate. The social ranking system of dogs, and what not. The Husky might be low in rank, or a reject. The polar bear may have sensed it's non-aggressiveness and smelled no threatening pharemones or whatever and figured the dog would be a friendly playmate. The dog, perceiving no threat from the polar bear for the same reasons, did not feel under threat. Sort of like two latent gays in a public restroom. Sometimes it just happens. And the body language and what not. See?

And how would something that size even know how to play with something so much smaller? When Siegfried and Roy's white tiger tried to treat Roy like a vulnerable pup it ended up almost biting his head off. A bear can't treat a dog like a sibling.

My crackpot theory is the global warming folks are trying to garner sympathy for the endangered bear by staging irresistible cuddle stunts.

The whole blood stained soulless predator image wasn't working.

Awwwwww

Four legs good, Four fins bad!