o:2725 The expensive-tissue hypothesis may help explain brain-size reduction during domestication en Morphological traits, such as white patches, floppy ears and curly tails, are ubiquitous in domestic animals and are referred to as the 'domestication syndrome'. A commonly discussed hypothesis that has the potential to provide a unifying explanation for these traits is the 'neural crest/domestication syndrome hypothesis'. Although this hypothesis has the potential to explain most traits of the domestication syndrome, it only has an indirect connection to the reduction of brain size, which is a typical trait of domestic animals. We discuss how the expensive-tissue hypothesis might help explain brain-size reduction in domestication. Brain size; cranial volume; gut; intestine; neural crest 1552099 10.1080/19420889.2022.2101196 2024-03-14T12:13:09.766Z 44 yes 46 Raffaela Lesch University of Veterinary Medicine Vienna 0000-0001-7151-252X Kurt Kotrschal University of Vienna person 0000-0001-7254-4347 Andrew C. Kitchener National Museums Scotland person 0000-0003-2594-0827 W Tecumseh Fitch University of Veterinary Medicine Vienna person 0000-0003-1830-0928 Alexander Kotrschal Wageningen University and Research person 0000-0003-3473-1402 application/pdf 448537 https://phaidra.vetmeduni.ac.at/o:2725 no yes 16 70 1552253 Communicative and Integrative Biology 4 15 1 190 192 Landes Bioscience 2022