Mind
Our brain evolved from two primitive nervous systems that merged
The front and back parts of our brain come from different progenitor cells in embryos, which suggests they evolved as separate entities
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The front and back parts of our brain come from different progenitor cells in embryos, which suggests they evolved as separate entities
We all have bits of DNA from a long-lost 鈥済host ancestor鈥 inside us 鈥 and by putting all the different bits together, we might be able to reconstruct their genome