Once there was a shark swimming in the ocean when, over there, the shark saw a fish. But it was a special fish. It was going to be his supper because there were no other fish the shark could find. Suddenly the shark saw a angry dolphin who really wanted that fish. Then the shark saw a killer whale. When the shark saw the killer whale he got an idea. The shark said to the dolphin, "We will fight for the fish and whoever loses will be the killer whale's supper." Suddenly the dolphin shouted, "You are nothing compared to me." The shark started to laugh so hard he could hardly breath. The shark laughed again and said to the dolphin, "You are a small crab to me. I can defeat you with my eyes closed." When the fight was about to start the the dolphin had a great idea. "Instead of fighting, we could share the fish because it is foolish for us to fight about a fish and have both of us suffer and die because of the killer whale. instead of us being killed, we can live and become friends." "You are right," Said the shark. From that day forward they were friends and never fought again. 
When there is danger around smaller differences are best forgotten. 