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The \u201c\n                    <jats:italic>selection trade\u2010offs hypothesis<\/jats:italic>\n                    \u201d proposes a life\u2010history trade\u2010off between accurate mimetic traits and one or more vital biological functions. Here, using an accurate myrmecomorphic (ant\u2010mimicking) jumping spider species,\n                    <jats:italic>Myrmarachne smaragdina<\/jats:italic>\n                    , we investigate how myrmecomorphic modifications to the body shape impact the internal anatomy in a way that could be functionally limiting. Specifically, via x\u2010ray micro\u2010computed tomography (microCT), we quantify how the spider's constricted prosoma, which emulates the head and thorax of ants, impacts the size of the central nervous system (CNS) and the venom glands. Although, relative to their whole\u2010body mass, we found no significant difference in venom gland volume, the CNS of the ant\u2010mimicking jumping spider was significantly smaller when compared with a relatively closely related non\u2010mimic jumping spider, indicating that some trade\u2010off between mimic accuracy and size of neural anatomy, as articulated by the \u201c\n                    <jats:italic>selection trade\u2010offs hypothesis<\/jats:italic>\n                    ,\u201d is a possibility. Our explorative evidence enables and encourages broader investigation of how variable mimic accuracy impacts the neuroanatomy in ant mimics as a direct test of the \u201c\n                    <jats:italic>selection trade\u2010offs hypothesis<\/jats:italic>\n                    .\u201d\n                  <\/jats:p>","DOI":"10.1002\/cne.25680","type":"journal-article","created":{"date-parts":[[2024,11,18]],"date-time":"2024-11-18T02:39:53Z","timestamp":1731897593000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Small Brains: Body Shape Constrains Tissue Allocation to the Central Nervous System in Ant\u2010Mimicking Spiders"],"prefix":"10.1002","volume":"532","author":[{"given":"Michael B. J.","family":"Kelly","sequence":"first","affiliation":[{"name":"School of Natural Sciences Macquarie University  Sydney New South Wales Australia"},{"name":"Zoological Institute and Museum University of Greifswald  Greifswald Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-7403-347X","authenticated-orcid":false,"given":"Vanessa","family":"Penna\u2010Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"School of Natural Sciences Macquarie University  Sydney New South Wales Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nikolas J.","family":"Willmott","sequence":"additional","affiliation":[{"name":"School of BioSciences University of Melbourne  Parkville Victoria Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Donald James","family":"McLean","sequence":"additional","affiliation":[{"name":"School of Natural Sciences Macquarie University  Sydney New South Wales Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jay R.","family":"Black","sequence":"additional","affiliation":[{"name":"School of Geography, Earth and Atmospheric Sciences University of Melbourne  Parkville Victoria Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jonas O.","family":"Wolff","sequence":"additional","affiliation":[{"name":"School of Natural Sciences Macquarie University  Sydney New South Wales Australia"},{"name":"Zoological Institute and Museum University of Greifswald  Greifswald Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marie E.","family":"Herberstein","sequence":"additional","affiliation":[{"name":"School of Natural Sciences Macquarie University  Sydney New South Wales Australia"},{"name":"Leibniz Institute for the Analysis of Biodiversity Change  Bonn Germany"},{"name":"Institute f\u00fcr Cell\u2010 und Systems Biology of Animals University of Hamburg  Hamburg Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,11,17]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/cne.24748"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmor.1051460303"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00312185"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2007.0458"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.11646\/zootaxa.4230.1.1"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.3389\/fevo.2021.733228"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1071\/ZO08014"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1155\/2013\/839181"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.2307\/3495552"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1155\/2012\/151989"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.7717\/peerj.16413"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1603\/EN11057"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1095\u20108312.2000.tb01234.x"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1095\u20108312.2006.00649.x"},{"key":"e_1_2_8_16_1","volume-title":"Biology of Spiders","author":"Foelix R. 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