1、 What is a living fossil

Living fossils are creatures that have not evolved in the long process of historical evolution, and their growth process has not been separated, and are still tenacious to survive. Because these creatures are like recorders on earth, they provide great help to scientists' research

2、 Ginkgo biloba and Metasequoia

Ginkgo tree is also called white fruit tree. Ginkgo appeared 270 million years ago. Later, most ginkgo became extinct like dinosaurs, and only a little has been preserved in some parts of China. It is known as "living fossil" and "Panda" in plants

Metasequoia glyptostroboides, which first appeared in the Mesozoic Cretaceous, is a precious relic plant that has experienced the Quaternary glacier catastrophe