In this book, based on a large number of research data accumulated in paleontology, biogeography, morphology, embryology, taxonomy and other fields for more than 20 years, Darwin demonstrated the diversity and unity of species origin and life essence from the aspects of variability, heredity, artificial selection, survival competition and adaptation, with natural selection as the core.

The Origin of Species not only opened a new era in the history of biological development, but also made the theory of evolution penetrate into all fields of natural science, which caused a great revolution in the whole human mind and had a wide and far-reaching impact in the course of world history. ?

Extended data

Creative background:

183 1, the hen house recommended Darwin to take part in the "Beagle" trip around the world. This round-the-world trip can be said to have completely changed Darwin's life and made him take a step further in biological research. Darwin followed the Beagle across the Atlantic and Pacific oceans and reached the southernmost Cape of Good Hope in South America, Australia and Africa.

Along the way, Darwin inspected the characteristics of geology, animals and plants, collected countless specimens, and made detailed observation notes on his findings. Five years later, Darwin traveled around the world and finally returned to England.

In the process of sailing around the world, there are both similar species and different species in each region, or the small island environment in South America and Oceania is similar. But the species are different. These findings strengthened Darwin's determination to study biological characteristics.

1842, Darwin completed a brief outline of the origin of species, and after more than ten years of hard research, he finally published the origin of species in 1859.

Baidu Encyclopedia-Origin of Species