Humans’ ability to hear harmonic sounds may set us apart from other primates, suggests a new study. The quality of pitch, how high or low a tone is, activates certain auditory regions in our brains, but not in macaque brains. This is perhaps because of the centrality of speech and music to humans.

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Humans’ ability to hear harmonic sounds may set us apart from other primates, suggests a new study. The quality of pitch, how high or low a tone is, activates certain auditory regions in our brains, but not in macaque brains. This is perhaps because of the centrality of speech and music to humans.