Traditionalists argue that using food causes weak performance and a fixation on the food rather than on performing a behavior. Ultimately, they say, food loses its reinforcing effect as the animal becomes satiated. However, if the reinforcement is varied, this loss of the effectiveness of food rewards will not occur. In fact the rein-forced behavior will become more enthusiastic. Let's look at nature.
Nature requires animals to work for food as an essential requirement of survival.
For example, a pack of wolves attack 20 moose, on average, for every one they actually kill. In the real world, animals must respond correctly to situations that offer reinforcements such as food, water arid shelter. A wolf that ignores a moose in order to hunt a mouse will soon perish. Even though moose hunting is far more hazardous than mouse hunting, wolves prefer to hunt larger game whenever they can. Big Game offers the opportunity for big payoffs.