Human Evolution is Accelerating

Carmine Martino

BIOL-2110-001

Dr. Guy Barbato

May 5th, 2026 

        A large ancient DNA study found that natural selection has played a much bigger role in recent human evolution than previously thought. By analyzing nearly 16,000 ancient genomes, the data showed that natural selection has affected hundreds of genes in people from West Eurasia over the past 10,000 years.

        Earlier studies had only identified a small number of genes influenced by natural selection, but this research showed that the number is much higher. In total, hundreds of genetic variants were identified as having been shaped by natural selection, which suggests that human evolution has been more active and widespread in recent history than scientists originally believed. Many of the genes identified are linked to disease risk and other traits seen in people today. However, it is not always clear why these genetic variants were beneficial in the past, even though they have become more common over time. The findings also show that natural selection has continued throughout recent human history and has not slowed down. This suggests that human evolution is still ongoing and that genetic changes have continued even after major lifestyle changes such as the development of agriculture.

        This study highlights how powerful ancient DNA research has become and how it can be used to better understand how human genetics have changed over time. It also shows that many traits seen in people today may have been shaped by natural selection in ways that are still not fully understood.

Article:

https://hms.harvard.edu/news/massive-ancient-dna-study-reveals-natural-selection-has-accelerated-recent-human-evolution

Extra Source: 

https://www.nhm.ac.uk/discover/what-is-natural-selection.html