Which bear is the most dangerous polar or grizzly?

The polar bear is said to be the most dangerous bear on the planet. Both the polar bear and the grizzley are dangerous to humans if provoked, however, grizzlies tend to be less aggressive to people unless actually confronted. Not so the polar bear. They rule their domain and will readily attack anything, including humans, that invade their territory.

So, to answer your question, if you are going to Alaska the polar bear may be the real problem for you. If you are going to the mountain states the grizzley is the most dangerous.

By the way...yes, grizzlies do live in Alaska as well.