The expression of care: alloparental care frequency predicts neural control of facial muscles in primates

Paola Cerrito & Alex DeCasien
The adaptive value of facial expressions has been debated in evolutionary biology ever since Darwin’s seminal work. Amongst mammals, primates, including humans, exhibit the most intricate facial displays. Although previous work has focused on the role of sociality in the evolution of primate facial expressions, this relationship has not been verified in a wide sample of species. Here, we examine the relationship between allomaternal care (paternal or alloparental) and the morphology of three orofacial brainstem...
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2 downloads reported since publication in 2021.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?