This thread to me was over at Polar bear. Tigers aren't even that successful in their own natural habitats. Their kill success rates are very low. Tigers are one of the most majestic animals on Earth ya, but cougars (mountain lions) are much more accomplished hunters. A tiger isnt going to attack unless it can stalk you up to pouncing distance. In that case, its a wrap...but if it misses, or an animal sees it a tiger doesnt have the attributes to run it down. The Tiger as a Predator
that's true for most predators though. most of the prey are inherently faster and more agile (or they would have been hunted to extinction a long time ago)