Environment
Our gut bugs evolved with us as we split from chimps
Humans harbour different, less diverse gut flora than our nearest relatives, which makes sense in light of our diet but could have a health downside
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Humans harbour different, less diverse gut flora than our nearest relatives, which makes sense in light of our diet but could have a health downside
Humans and chimps both involuntarily mimic pupil dilation in others – but only if those others are members of the same species