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Human Brain May Have Evolved From Two Merged Nervous Systems
Key Takeaways
- The front and back of the human brain are built from different progenitor cell populations in the embryo, according to New Scientist.
- That developmental split suggests the two regions evolved as separate entities rather than as one uniform organ.
- The finding implies the brain may be a composite of two primitive nervous systems that later merged.
- Anterior and posterior brain regions already show clear functional differences, which the split origin may help explain.
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DT Editorial Team··via newscientist.com