The Origin Of The Brain

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Macro of a large boulder of Symmetrical Brain Coral (Diplora strigosa) by laszlo-photo on Flickr.

“The human brain contains over 100 billion neurons, and roughly 1 quintillion synapses. But how did it all get started? How did the first nervous systems, the first brains evolve? How did a bunch of simple cells evolve into a biological computer?”