The weirdest thing about human beings among the creatures on earth is that everyone is different, and everyone's personality is extremely complicated. This situation can be speculated from many angles, and this story uses one of them. There is the phrase "human pig brain" among the jokes. It is not a joke. Some people may really have a genetic component of pig brains in their brains.By analogy, the genetic composition of various creatures in the human brain can be seen in his behavior to some extent.If you have nothing to do, you might as well look for some people and make a joke.