Plants are autotrophs that can carry out photosynthesis, transform inorganic substances into organic substances and live independently. In nature, there are about 400,000 known plants, which are distributed in every corner of the earth and support themselves in various strange ways. Most plants can carry out photosynthesis, synthesize organic matter, store energy and release oxygen. And for plants, there is no need to walk around in search of food, and there is no need to have a complicated nervous system like animals. With the special autotrophic ability of photosynthesis, plants only need to sit still, far from worrying about eating.

However, it is precisely because plants can't walk that a large part of plants will helplessly become delicious food in animals' mouths. Not only herbivores rely on the egg quality and energy provided by plants, but carnivores also indirectly rely on the energy provided by plants. It can be said that the role of plants in nature is very important. Life is almost impossible without plants.

Because plants can't walk, their changes are closely related to the surrounding environment, and their life cycle is also synchronized with the four seasons. Plants resist winter or dry season by setting seeds and falling leaves. They also have many unique survival skills. For example, plants are divided into main tissues and cells are totipotent, which makes them have strong regeneration ability. Any single plant cell tissue will grow into a new plant with various cell types, which is incomparable to animals. It is conceivable to cut off an animal's arm or leg, but for plants, it is only necessary to regrow the lost part.