Half-Grizzly, Half-Polar Grolar Bears Are Global Warming's Cutest Outcome Maureen O'Connor · 05/24/10 03:55PM Grolar bears have "thick white fur like a polar bear" and "a wide head, brown legs, and brown paws like a grizzly." They happen when global warming drives grizzlies north. Global warming: Cute but deadly. [CBC, SciAm, pic]