findings. Some studies suggests that inadequate published data in animal testing may result in irreproducible research, with missing details about how experiments are done are omitted from published papers or differences in testing that may introduce bias. Examples of hidden bias include a 2014 study from McGill University which suggests that mice handled by men rather than women showed higher stress levels. Another study in 2016 suggested that gut microbiomes in mice may have an impact upon scientific research. Market size The worldwide market for gene-altered mice is predicted to grow to $1.59 billion by 2022, growing at a rate of 7.5 percent per year. See also Laboratory rat Animal testing Animal testing on rodents Animal model Animal Identification Fe, Fi, Fo, Fum, and Phooey, five laboratory mice who orbited the Moon 75 times on Apollo 17 Mouse models of colorectal and intestinal cancer Pinky and the Brain Testing cosmetics on animals Monument to the laboratory mouse References Further reading External links Taxonomy http://www.findmice.org/ Genetics Ensembl Mus musculus genome browser, from the Ensembl Project Vega Mus musculus genome browser, includes NOD mouse sequence and annotation Media Pictures, movies and applets showing the anatomy of Mus musculus, from www.digimorph.org Michael Purdy: "Researchers add mice to list of creatures that sing in the presence of mates"-Study of male mouse "song" with mouse song recording (MP3), by Washington University Medical School Arkive Photographs.Short text. High-Resolution Brain Maps and Brain Atlases of Mus musculus Further reading Biology of the Mouse, from the Louisiana Veterinary Medical Association Nature Mouse Special 2002 Biology of Laboratory Rodents by David G. Besselsen Cosmopolitan mammals House mouse Old World rats and mice Cruelty to animals Animal models