Study Suggests Rapid DNA Evolution Could Be Behind Human Brain Complexity

In a groundbreaking study, researchers have identified that certain segments of DNA known as human accelerated regions (HARs) have evolved at a faster rate than other areas. This rapid evolution may be a crucial factor in the development of the human brain’s advanced cognitive functions.

The study involved a detailed comparison between human and chimpanzee neurons, revealing that HARs significantly contribute to the growth of multiple neural projections. These projections are vital for enhancing communication between brain cells, suggesting a direct link between HARs and improved neurological capabilities.

This discovery opens new avenues in understanding the genetic factors that underpin the complex nature of the human brain. The findings were published on February 26, 2025, and provide valuable insights into the evolutionary aspects that differentiate humans from their closest relatives.

Dat: 26 February, 2025

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Author

Mark Chiang

Ph.D in Biomedical Informatics Head of AI at GeneOnline