Did you hear that voice? It could be your brain looking for patterns; Pro fighters help scientists understand evolution of concussions; and more

Quirks and Quarks

Hearing voices when there are none; Pro fighters, brain injury and the risks; Mystery of civil-war sub solved by forensics; A sea snakes skin swallows up pollution; Lost City of The Monkey God; Question, How melatonin is regulated in blind people.

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