There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
Brown bears (together with black bears) are the most adaptable of the bears. Therefore, I don't see why they can't be introduced in the area which was once the habitat of the Atlas bears. Brown bears (e.g. the Pleistocene grizzly bear) live in the world with various types of predators. I think the brown bears will choose the Savannah while the black bears will choose the forest areas and probably even feast peacefully beside the gorillas most of the time (occassionally hunting the young, females, or even old silverbacks that have been ousted from their troop by a younger rival and forced to live a solitary existance). The leopard will have one extra problem to worry about given the black bears can also climb trees (and they do so more often than tigers and lions).