3. Mountain Lion
These remarkable hunters stalk prey so quietly that often an animal doesn’t know it’s a target until there’s a 150-pound cat on its back. Lions kill by striking from the rear, jumping onto an animal’s back and breaking its neck by biting into the base of the skull. These cats are prodigious jumpers, able to leap as high as 15 feet and as far as 40 feet, and they run fast too — capable of reaching 50 miles-per-hour at a sprint.