We had this post ages ago, and someone said that Tigers are evolved to survive on their own and hunt etc, whereas male Lions are evolved to fight with and kill other male lions so they can head a pride and the females do the hunting.

I thought it an interesting point.

Nicolai Vauev is probably more than 200lbs heavier that Roberto Duran, but I would take Duran to wipe him out on the street or in a telephone booth?