You know what’s also found in 1500 different species? Cannibalism! Many animals eat their own kind for many different reasons however they all ensure animals are well fed. However as humans we are above animals. The majority if us are civilized and have decency (Well it’s more of a minority nowadays but you get the point) because of this we do not resort to eating our deceased friends and family unless under severe circumstances. Just because animals do something primitive and repulsive doesn’t mean we have to lower ourselves down to their level and do it as well.