The Kamtchatka brown bear is a different subspecies, Ursus arctos piscator , whereas Kodiak brown is Ursus arctos middendorffi (spl?) and grizz Ursus arctos horribilis (just a lovely name for a lovely animal ).

Piscator grows huge, smaller than middendorffi but bigger than horribilis .

Hope this helps.

You can be certain that horribilis, middendorffi and piscator are that much related that they are able produce fertile offspring. The differences are only due to genetic drift since the bering strait opened. And thats a fairly recent event with evolutionary standards.

Of course they can produce fertile offspring, they do belong to the same species. Just 3 different subspecies...

Here is a picture of several large russian bears that canme out of that area, I was told the guy in the picture stands 5"6" to give you an idea of the size of Da Bears [

I remember seeing this picture before,don't remember where.
But I thought these were Kodiak bears.Where did you get
the picture from?
Jeff