Do humans have a corresponding vomeronasal organ (that other mammals have) to detect pheromone scents?
Source: Wikipedia Anatomical studies demonstrate that in humans the vomeronasal organ regresses during fetal development, as is the case with some other mammals, including apes, cetaceans, and some bats. In fact, the human embryonic VNO possesses bipolar cells and luteinizing hormone releasing hormone (LHRH) producing cells, both that are characteristics of developing vomeronasal systems in other animals. It is debatable, and somewhat controversial, whether or not there is a presence of the vomeronasal system in adult humans. Many studies have been performed to find if there is an actual presence of a VNO in adult humans. Trotier et al estimated that around 92% of their subjects that had no septal surgery had at least one intact VNO. Kajer and Hansen, on the other hand, stated that VNO structure disappeared at later stages in development. Won (2000) found evidence of a VNO in 13 of his 22 cadavers (59.1%) and in 22 of his 78 living patients (28.2%). [8] Given these findings, some scien
