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Within the species <jats:italic>Canis familiaris<\/jats:italic> individual breeds, such as the bloodhound or beagle, are known as olfactory stars. These are \u201cscent breeds,\u201d a grouping variably defined as a genetic clade or breed class commonly used for scent detection tasks. Previous work suggests that the dog has a more robust olfactory anatomy than many mammal species. Now we undertake a closer investigation of the dog's olfactory system, both in relationship to its closest wild relatives, the wolf and coyote, and across individual breeds. First, we seek to resolve whether the dog has lost olfactory capacity through its domestication from the wolf lineage. Second, we test the inertial lore that among dogs, \u201cscent breeds,\u201d have a superior olfactory facility. As a measure of relative olfactory capacity, we look to the cribriform plate (CP), a bony cup in the posterior nasal cavity perforated by passageways for all olfactory nerve bundles streaming from the periphery to the brain. Using high\u2010resolution computed tomography (CT) scans and digital quantification, we compare relative CP size in 46 dog breeds, the coyote and gray wolf. Results show the dog has a reduced CP surface area relative to the wolf and coyote. Moreover, we found no significant differences between CP size of \u201cscent\u201d and \u201cnon\u2010scent\u201d breeds. Our study suggests that the dog lost olfactory capacity as a result of domestication and this loss was not recovered in particular breed groupings through directed artificial selection for increased olfactory facility.<\/jats:p>","DOI":"10.1002\/ar.24518","type":"journal-article","created":{"date-parts":[[2020,11,18]],"date-time":"2020-11-18T02:25:20Z","timestamp":1605666320000},"page":"139-153","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Domesticating olfaction: Dog breeds, including scent hounds, have reduced cribriform plate morphology relative to wolves"],"prefix":"10.1002","volume":"304","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8217-8985","authenticated-orcid":false,"given":"Deborah J.","family":"Bird","sequence":"first","affiliation":[{"name":"Department of Ecology and Evolutionary Biology University of California Los Angeles  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christiane","family":"Jacquemetton","sequence":"additional","affiliation":[{"name":"Department of Ecology and Evolutionary Biology University of California Los Angeles  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sophie A.","family":"Buelow","sequence":"additional","affiliation":[{"name":"Department of Ecology and Evolutionary Biology University of California Los Angeles  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew W.","family":"Evans","sequence":"additional","affiliation":[{"name":"Department of Ecology and Evolutionary Biology University of California Los Angeles  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Blaire","family":"Van Valkenburgh","sequence":"additional","affiliation":[{"name":"Department of Ecology and Evolutionary Biology University of California Los Angeles  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,11,17]]},"reference":[{"key":"e_1_2_7_2_1","volume-title":"The complete dog book: American Kennel Club","author":"American Kennel Club","year":"2006"},{"key":"e_1_2_7_3_1","volume-title":"About the breed: Overview","author":"Anderson J.","year":"2018"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature11837"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/ar.23032"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2018.0100"},{"key":"e_1_2_7_7_1","volume-title":"The natural history of pliny the elder: With copious notes and illustrations","author":"Bostock J.","year":"1855"},{"key":"e_1_2_7_8_1","volume-title":"The complete bloodhound","author":"Brey C. 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