Sun Tzu knows a little bit more about fighting than you do because he invented it, then he bested it, and then he perfected it.
then he used his fight money to buy 2 of every single animal on earth, he herded all the animals onto a boat, and then he beat the sh1t out of every single one of them.
so from that day on everytime you have a bunch of animals together its called a ZOO!