Nihon University professor and head of Nihon University Animal Medical Center Kazuya Edamura, 49, points to cat photos on a computer screen, which are used to train the AI of “CatsMe!”, an AI-driven smartphone application jointly developed by tech startup Carelogy and researchers at Nihon University that purports to tell when a cat is feeling pain, as he gives a lecture to students on diagnosing pain in cats, at the medical center in Fujisawa, south of Tokyo, Japan on June 11, 2024. (Photo by Issei Kato/Reuters)

A death mask thought to be that of English dramatist William Shakespeare (1566–1616). Found by Dr. Ludwig Becker in Mainz in 1849, the mask was linked to Shakespeare because of its 1616 date and its supposed facial resemblance to the writer. A rival theory, however, maintains that the mask is more likely to be that of English poet Ben Johnson. (Photo by Hulton Archive/Getty Images). Circa 1900

A member of the Revolutionary Armed Forces of Colombia (FARC) pose for a picture at a camp in the Colombian mountains on February 2005. (Photo by Frank Piasecki Poulsen)

The buildings of the banking district are seen through thousands of rain drops on a glass railing in central Frankfurt, Germany, Wednesday, January 11, 2017. (Photo by Michael Probst/AP Photo)

Lesser Horned Owl (Bubo magellanicus) is seen at the meadows of Patagonian valley in Santa Cruz, Argentina on December 21, 2024. Lesser Horned Owl is a large owl of the genus Bubo found in southern South America, with its distinctive “horns”, black-rimmed face and heavily striped abdomen. (Photo by Mehmet Emin Yogurtcuoglu/Anadolu via Getty Images)

A folk performer (front R) with make-up and props takes part in a “Blood Shehuo” parade, during a performance in Linyi county, Shanxi province March 21, 2015. “Shehuo” is the common name of Chinese traditional activities consisting of folk performances in northern China. The “Blood Shehuo” performers use make-up and props to re-enact scenes of horror in classic Chinese novels like Water Margin. (Photo by Reuters/Stringer)

British model Leomie Anderson and British television presenter AJ Odudu pose as they arrive for the Brit Awards at the O2 Arena in London, Britain on February 11, 2023. (Photo by Maja Smiejkowska/Reuters)

Joy Corrigan is seen on June 24, 2021 in Los Angeles, California. The 26-year-old American supermodel wore a peach bra and matching shorts with a bright yellow handbag in LA for the Alo Yoga do. (Photo by The Mega Agency)