L. Rigaill

Does male mate choice select for female colouration in a promiscuous primate species?

This study investigates whether male mate choice in Japanese macaques is influenced by female skin coloration, finding no preference for darker/redder females and no use of coloration to assess fertility or social status.

Information content of cheek and lip colour in relation to the timing of ovulation in women

This study examines the relationship between cheek and lip color variation and ovulation timing in women, finding that lip color, but not cheek color, correlates with ovulation.