Original study: https://www.cell.com/current-biology/abstract/S0960-9822(24)01594-X?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982

Original study: https://www.cell.com/current-biology/abstract/S0960-9822(24)01594-X?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS096098222401594X%3Fshowall%3Dtrue https://www.cell.com/current-biology/abstract/S0960-9822(24)... It's worth noting that the chimps were in captivity, so it's not like there were researchers crouching in a bush in the jungle watching chimps pee for 600 hours. At least not for this study.