Polar bears inhabit the Arctic, a region surrounding the North Pole. The Arctic is essentially an ocean covered in drifting ice sheets, bordered by landmasses like Canada, Russia, Greenland, and Scandinavia.
Penguins, on the other hand, are found exclusively in the Southern Hemisphere, primarily in Antarctica, with several species extending to South America, Africa, Australia, and New Zealand.

In light of the fact that the Polar Bear is in the North Pole, it would not come across Penguins as they are exclusively in the Southern Hemisphere. IF a Polar Bear came across a Penguin, it would likely be Hor d’oeuvres.