Brain Is Two Separate Organs, Scientists Find
19th September 2026
The brain is two separate organs that work together, rather than a single unified unit, scientists at Stanford University have discovered.
Researchers now think that at some time in human evolutionary history, the two parts of the brain may have been separated in space – similar to how jellyfish have two nervous systems in different parts of their body – before moving together.
The human brain, therefore, consists of two ancient nervous systems which are “cleverly packaged together” and have evolved independently over millions of years, experts believe.