It is beneficial because when animals perish to death they suffer and get weaker. if they die by a predator they don't suffer plus its the circle of life, and apart of the food chains. a connection between predators and prey that is good and essential. the predator needs the animal as food to endure, if the animal simply dies of hunger you finish up with the equivalent result, only the predator won't be fed. Beginning predation to help with the “balance of nature” supports present a more direct influence on the population size.