Can a tiger kill a grizzly bear?

No. Brown bears live in Alaska, and in northern Russia, and most tigers live in the more southern regions of Asia. Thus, it is improbable to say, let alone ask, that a brown bear could or will kill a tiger, or vice versa.

No. Brown bears live in Alaska, and in northern Russia, and most tigers live in the more southern regions of Asia. Thus, it is improbable to say, let alone ask, that a brown bear could or will kill a tiger.

Brown bears and Siberian tigers do coexist in northern regions of Asia. There have been conflicts, and sometimes the bear wins, other times the tiger.