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Humans have a strange reflex that no other primate has—and it might be a leftover from ancient fear

A car backfires, and your shoulders jump. A shadow moves, and your eyes fly open before your brain catches up. That dramatic ...

Macaque facial gestures are more than just a reflex, study finds

The team thinks this means that the cingulate cortex manages the social purpose and context of the facial gesture, which is ...