The first of April on a daily web site of the journal Science (ScienceNow) it was reported that a group of geneticists from the U.S. Institute Leychen in New Jersey have found a gene responsible for a sense of humor in humans. The gene was named Haha-1. By Scientists say they have found a gene in mice, albeit in the off position. When the researchers 'included' Haha-1 in the three experimental mice, one of them started to publish a thin squeak when she showed a picture with the cat, which crushed the anvil, – she seemed to have laughed at his eternal enemy, got into a nasty mess. Scientists hope that their future discovery will lead to a cure that will help instill sense of humor to people who have it from birth do not. This message was clearly an April Fool's joke. Does not exist in the world (more precisely, the Internet) Institute named Leychen, unknown Horace Epstein, who heads a group of geneticists from the Institute, has been found as the magazine Genes and Behavior, which supposedly should appear in an article on the discovery of the gene responsible for a sense of humor, to the same article in ScienceNow signed by a man named Grim (Grim), and humorously flippant tone of the note did not have to much confidence … But there is a professor Dzhaak Panksepp, an expert on animal behavior, there is a Bowling Green State University, Ohio, where he works, There, finally, the journal Science, where he was the first of April of the same published his article on the nature of laughter.