Jane Goodall, the late primatologist, was known for her imitations of chimpanzee greetings. When she met with Prince Harry, in 2019, she approached him slowly, making panting noises through circular lips. She prompted him to pat her lightly on the head, then reached up for an embrace, making soft hooting sounds. During her career, Goodall observed chimps engaging in more than a thousand such greetings. They sometimes touched their lips together, breathed into one another's open mouths, or stood on two legs and hugged.
The findings, published on Wednesday in the journal Evolution and Human Behavior, reveal that, far from being a recent human cultural invention, kissing is an ancient trait deeply rooted in our biology. This is the first time anyone has taken a broad evolutionary lens to examine kissing. Our findings add to a growing body of work highlighting the remarkable diversity of sexual behaviors exhibited by our primate cousins, said Matilda Brindle, lead author of the study and an evolutionary biologist in the Department of Biology at Oxford, in a statement.
In 1960, at the age of 26, Jane Goodall ventured to Gombe Stream National Park in Tanzania to study chimpanzees. Her discoveries were groundbreaking and her approach to fieldwork was revolutionary. She immersed herself in the chimps' daily lives and gave them names. Goodall became a tireless advocate for conservation in addition to one of the world's best-known primatologists.