Why is it important to preserve the diversity of species in nature?

All creatures are part of the ecosystem and play an important role in maintaining life on Earth. For example, eagles depend on mice, frogs and other small animals, and if these animals die out, then the eagles will disappear. In addition to the fact that plants are the main source of food for humans and animals, more than 60% of the inhabitants of the Earth use plants as medicines. Many types of plants are used in industry, where they are used to make paints, oils, etc.