The human brain is not a single organ, but two separate systems that evolved independently before fusing together, according to groundbreaking new research. … Armed with the knowledge of how hindbrain cells uniquely form, the team has successfully turned human stem cells into becoming functional hindbrain motor neurons in a lab for the first time.
Pretty cool stuff. It’s been well understood for a while that lower brain function governs things like hunger sex and lower animal functions and the frontal cortex governs higher reasoning. Crazy they might have been separate organs at one point.