This chart shows human brains size over time. They got way bigger, fast. But now they’re shrinking? (No, it’s not the phones!) About 2 million years ago something changed and it altered the course of human evolution. Our brains just started RAPIDLY growing, the organ nearly doubled in size in just a few hundred thousand years. This turning point is what allowed us to evolve into the intelligent species we are today. But now… To learn more, follow along! #evolution #human origins #science

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The brain acts like the central computer controlling the communication with all structures of the body, named: Central Nervous System. The spinal cord, an extension of the brain, is organised in levels defined by each vertebra. Each vertebral level is called metameric level: like a regional manager. Each level is in charge to collect and distribute the messages (electrical impulse) from and to the brain. Each level, through the spinal nerves, manages the information coming from a particular grou

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