Man is the overlord of the earth. Are there no natural enemies in this ecology?

The earth is our natural enemy, and naturally it is our natural enemy, such as volcanic eruptions and earthquakes, which are more terrible than natural enemies. In fact, human beings can become the overlord of the earth, just like upgrading and fighting monsters, climbing from the low end of the food chain to the top of the biological chain bit by bit. We know that the earliest human ancestors were apes living in the forest. They usually live in the forest and collect fruits for a living. Later, due to the sudden change of the environment, the forest gradually disappeared and evolved into a savanna.

Early human ancestors had to live under trees, so this small group of apes evolved to walk upright. However, the speed of walking upright is not fast. At that time, there were large carnivores, such as being afraid of cats. Humans are often hunted for fear of cats. Besides being afraid of cats, many large carnivores are also natural enemies of human beings. But human beings survived in the dark ages, and it was not until they learned to use fire and tools that they began to let serfs sing and become the top of the food chain.

In other words, human beings do not become the overlord of the earth by their huge size and sharp claws, but by using tools. At present, most creatures don't use tools. Even if they can use tools, they are not as good as humans. Therefore, in this respect, life on earth will not be the natural enemy of human beings. Human extinction In fact, the reason why human beings can become the overlord of the earth is inseparable from the extinction of dinosaurs.

We know that human ancestors appeared in the dinosaur era, but in the ecological competition, dinosaurs are well-deserved overlords, and they occupy a favorable position in the ecological chain. However, ancient human ancestors could only rely on wilderness and tree habitats to avoid direct competition with dinosaurs, so they survived in the dinosaur era. Later, 65 million years ago, due to the impact of asteroids on the earth, the earth's ecological environment was destroyed, and dinosaurs with large size and high energy consumption died in a large area due to lack of food. However, the ancient ancestors of human beings were preserved in this disaster because they needed less energy.