Your Cheatin’ Heart? More Like Your Cheatin’ Brain

Your Cheatin’ Heart? More Like Your Cheatin’ Brain

Video: Some people cheat on their partners. Others wouldn’t dream of it — the risk is too huge. A new video from ASAP Science lays out how genetic differences in the neurotransmitters that promote risk-taking and social bonding might influence people’s willingness to stray.

And while the video focuses on “extra-pair matings” in humans, it’s worth pointing out that the behaviour isn’t unique to us: biologists have found that lots of other animals that appear monogamous — from splendid fairy wrens and indigo buntings to tree shrews and the convict cichlid fish — are also getting a little on the side.

[ASAP Science]

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