Humans have their own instinct which stays inside and we do not know how it looks like. The instinct will show up when some situation was happening. For example, when the house is on fire, people would be alarmed and apprehensive; then they run away and will leave their stuffs inside the house for saving their life. It was called the problem-solving instincts of human. All human were born with the instinct and it is not the same as other people. Thus, people do not receive teaching about the instinct when they were children. Humans have many instincts inside and the instincts that people can see it easier are the problem-solving instinct, the reproduction instinct and the surviving instinct.