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Thursday, 27 January 2022

Babies can tell who has close relationships based on one clue: Saliva

Neuroscientists have identified a specific signal that young children and even babies can use to determine whether two people have a strong relationship and a mutual obligation to help each other: whether those two people kiss, share food, or have other interactions that involve sharing saliva.

from All Top News -- ScienceDaily https://ift.tt/3AfZxk9

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