Lion vs Bear vs Gorilla  - it very much depends on the environment too.<br>about intelligence - it would not have almost any affect in this fight. <br>it would be pure instinct. the intelligence would be very significant factor when they live for some time in the same neighborhood. gorillas would slowly getting better in these fights and learn how to be more effective and use tools. in some time they would dominate the lions.<br>but in situation like this gorilla would have no time and calmness to think at all...