Researchers at the University of Cambridge have demonstrated an evolutionary theory about 140 years after Darwin’s death. The study was published in the Proceedings of the Royal Society B. Subspecies are different populations within species due to their different physical properties and breeding ranges.
For example, the northern giraffe has three subspecies, the red fox has 45 subspecies, and the human population does not have a subspecies.
“In Chapter 3 of The Origin of Species, Darwin said that animal lineies with more species should also include more ‘variants’,” explains Laura Van Holstein, a doctoral student in biological anthropology and lead author of the study.
Subspecies are a modern definition of ‘variants’. Our latest research shows that subspecies are crucial in the long-term evolution of species and future evolution, and they have always been, but Darwin doubts this when defining species. ”