Lip-Lock legacy: Humans inherited kissing from apes; origins trace back 21mn years

A groundbreaking study reveals kissing predates humans by millions of years, originating with ape ancestors in prehistoric Africa. Researchers define it as non-aggressive mouth-to-mouth contact, observing it across diverse species, particularly primates. This ancient behavior, possibly practiced by Neanderthals, may have evolved for mate assessment or social bonding, offering a glimpse into our deep evolutionary past.