More than 100 years later, the hypothesis of Darwinian evolution has been proved that subspecies of mammals play an important role in the evolution of species.
Beijing Science and technology daily, according to a report organized by physicists on the 18th, a theory of Darwin’s theory of evolution was finally confirmed about 140 years after his death!
Scientists at Cambridge University wrote in the second volume of the 18th issue of the Journal of the royal society that subspecies of mammals play a more important role in evolution than previously thought. The latest research can help conservationists predict which species should be protected to prevent them from dying out.
Subspecies are different populations in a species because of their different physical characteristics and reproductive ranges. For example, there are three subspecies of giraffe in the north, 45 subspecies of red fox, and no subspecies of human.
Laura van Holstein, the leader and doctoral student of the latest research in biological anthropology, explains: in the third chapter of the origin of species, Darwin said that the more species there are, the more varieties there should be in the animal lineage, and subspecies are the modern definition of varieties.
Our latest research shows that subspecies are crucial in the long-term evolution and future evolution of species, and they have always been so, but Darwin doubted this when defining species.
Holstein et al. Confirmed Darwin’s hypothesis by observing the data collected by naturalists for hundreds of years. Their research also proved that the evolution of terrestrial mammals, marine mammals and bats are also different due to differences in habitat and free migration.
In addition, the study also explored whether subspecies can be regarded as an early stage of speciation, i.e., the formation of new species. The answer is yes, says Holstein.
The study also warns humans that human impacts on animal habitats will affect not only their present but also their future evolution, Holstein said. Animal conservationists can use this information to identify protected objects.
Evolutionary models can use these findings to predict how human activities, such as logging and deforestation, affect the future evolution of species by destroying their habitats, Holstein explained. Subspecies of animals are often overlooked, but they play a key role in long-term evolutionary dynamics.
It is often said that there are two major scientific breakthroughs in human history. The first is heliocentric theory and the second is evolutionism. This is because evolution is not only a great synthesis of biological science, but also reflects that scientists can comprehensively and systematically explain the biological evolution and its causes on earth through a large number of scientific facts.
So as to make a breakthrough in the problem of biological evolution that people have not yet solved. Even today, this theory still plays an important role in protecting species, which is the immortal charm of evolution.