One day I watched a documentary about leopards at NATGEO WILD. From the time he was born to adulthood, his nature had not changed. His instinct is to hunt for survival, with survival principles inherited from his parents. Maybe so do the other animals. As fierce as a dog may be, he is not as greedy as a pig. As greedy as a pig is, he’s not as cunning as a monkey. And no matter how cunning the monkey is, he only characterizes it from the garden.
Not like us humans. Once we get to know this mortal world, our nature can change like that of an animal. Barking like a dog, greedy like a pig, cunning like a monkey, sometimes shameless. Humans are no longer in us, their nature and behavior are like animals.