Animals don't kill each other for fun, they kill each other for food.
Humans kill each other for fun and for materialistic gain, for the destruction of our home. Having an elite group of sociopaths is a man made system.
This is complete bullshit. Domectic cats kill mice often for fun without any intention to eat them, lions kill hyenas whenever an opportunity arises (not saying that they often kill their own kittens if they want to bang their mom), bottle-nose dolphins have been proven to kill porpoises without any purpose, even ants wage wars and capture slaves making them work against their will...
