{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"bioRxiv"}],"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T15:24:07Z","timestamp":1785425047289,"version":"3.56.0"},"posted":{"date-parts":[[2025,4,9]]},"group-title":"Biophysics","reference-count":30,"publisher":"openRxiv","license":[{"start":{"date-parts":[[2025,4,9]],"date-time":"2025-04-09T00:00:00Z","timestamp":1744156800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.biorxiv.org\/about\/FAQ#license"}],"funder":[{"award":["R35GM142588"],"award-info":[{"award-number":["R35GM142588"]}],"id":[{"id":"https:\/\/ror.org\/01cwqze88","id-type":"ROR","asserted-by":"publisher"}]},{"award":["MCB-1817334"],"award-info":[{"award-number":["MCB-1817334"]}],"id":[{"id":"https:\/\/ror.org\/021nxhr62","id-type":"ROR","asserted-by":"publisher"}]},{"award":["CMMI-2218382"],"award-info":[{"award-number":["CMMI-2218382"]}],"id":[{"id":"https:\/\/ror.org\/021nxhr62","id-type":"ROR","asserted-by":"publisher"}]},{"award":["CAREER IOS 1941933"],"award-info":[{"award-number":["CAREER IOS 1941933"]}],"id":[{"id":"https:\/\/ror.org\/021nxhr62","id-type":"ROR","asserted-by":"publisher"}]},{"award":["PHY-2310691"],"award-info":[{"award-number":["PHY-2310691"]}],"id":[{"id":"https:\/\/ror.org\/021nxhr62","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/100014895","name":"Open Philanthropy Project","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100014895","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2025,6,14]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                <jats:p>\n                  <jats:italic>Rhagovelia oriander<\/jats:italic>\n                  is a freshwater water strider native to the rivers and streams of North and South America, known for its distinctive skating movement on the water\u2019s surface. This movement resembles the correlated random-walk pattern seen in microorganisms such as\n                  <jats:italic>Escherichia coli<\/jats:italic>\n                  . Previous studies have primarily focused on limb adaptations and biomechanics, leaving the ecological significance inadequately addressed. We combine field observations with controlled laboratory experiments using a flow mill to investigate the dynamics of\n                  <jats:italic>R. oriander<\/jats:italic>\n                  under typical flow conditions. Our findings indicate that this insect exhibits a two-dimensional run-and-tumble motion, often incorporating lateral tumbles following straight runs (run distance: 30.7 \u00b1 9.3 mm). We find that this behavior is resilient to changes in flow speed. In-silico simulations of particle interception demonstrated that this locomotion method enhances encounter rates compared to linear movement, particularly when the simulated food particle is following a rapid flow field. Our results document run-and-tumble locomotion in a millimeter-scale organism, showcasing a unique example of convergent behavior across diverse taxonomic groups and providing valuable insights into locomotion ecology while serving as a source of inspiration for bioinspired robotics and environmental exploration algorithms.\n                <\/jats:p>","DOI":"10.1101\/2025.04.03.647112","type":"posted-content","created":{"date-parts":[[2025,4,9]],"date-time":"2025-04-09T12:25:14Z","timestamp":1744201514000},"source":"Crossref","is-referenced-by-count":2,"title":["Rhagovelia uses interfacial run-and-tumble locomotion to improve food capture in flowing environments"],"prefix":"10.64898","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0250-757X","authenticated-orcid":false,"given":"Ishant","family":"Tiwari","sequence":"first","affiliation":[{"name":"School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-5398-7229","authenticated-orcid":false,"given":"Nithil","family":"Nagappan","sequence":"additional","affiliation":[{"name":"School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7752-6471","authenticated-orcid":false,"given":"Jacob S.","family":"Harrison","sequence":"additional","affiliation":[{"name":"School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9788-9920","authenticated-orcid":false,"given":"Saad","family":"Bhamla","sequence":"additional","affiliation":[{"name":"School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, United States"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"54368","reference":[{"issue":"6","key":"2026041203404560000_2025.04.03.647112v2.1","first-page":"716","article-title":"A new look at the statistical model identification","volume":"19","year":"2003","journal-title":"IEEE transactions on automatic control"},{"key":"2026041203404560000_2025.04.03.647112v2.2","doi-asserted-by":"crossref","unstructured":"Anderson, D. 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