First kiss ‘was 21 million years ago’
Kissing cousins: The Barbary macaque, also known as the Berber monkey, frequently engages in lip-to-lip contact that resembles kissing, primarily as a form of social greeting and affectionate bonding. Kissing cousins: The Barbary macaque, also known as the Berber monkey, frequently engages in lip-to-lip contact that resembles kissing, primarily as a form of social greeting and affectionate bonding.