A silverback gorilla, as the alpha male of his troop, would likely be able to kill a leopard in a straight-on confrontation due to its incredible physical strength, weight advantage and powerful bite. Leopards, however, are believed to occasionally prey on gorillas based on remains from their droppings.
The leopard's chances in a fight are increased if it can ambush the gorilla and sever the spinal cord for a quick kill, as it does to its prey. The stealthy nature of the leopard, combined with its affinity for stalking from treetops, enables it to prey on large primates, such as chimpanzees. The impressive physical strength of the leopard allows it to drag kills up trees, where it can eat without interruption from other predators or scavengers.