Achievements that first make people laugh and then make them think. That’s the motto of the Ig Nobel Prizes, an annual competition that—parodying the Nobel Prizes—recognizes some of the world’s most unusual scientific studies. The organization Improbable Research has been hosting the event since 1991 with the aim of showing that science also has a humorous side in its quest to meaningfully answer questions about the world.
\n\nThis year the ceremony was held in Zurich, Switzerland, and recognized 10 research projects ranging from an attempt to scientifically define what a kiss is to an experiment that used buried underwear to assess soil health.
\n\nWhat exactly is a kiss? A group of researchers decided to establish a scientific definition that would apply to all animals, not just humans. They came up with the categorization that a kiss is “a non-agonistic interaction involving directed intraspecific oral-oral contact, with some movement of the lips or oral structures and without the transfer of food.” By this definition, other great ape species are also kissers, so are domestic dogs and cats as well as pigeons, penguins, squirrels, black bears, and tortoises—though not all of these kisses have the same meaning.
\n\nIn the study “Higher Social…
Original source: https://www.wired.com/