eprintid: 10192662 rev_number: 9 eprint_status: archive userid: 699 dir: disk0/10/19/26/62 datestamp: 2024-05-23 09:39:11 lastmod: 2024-05-23 09:39:11 status_changed: 2024-05-23 09:39:11 type: article metadata_visibility: show sword_depositor: 699 creators_name: Wang, Simeng creators_name: Didziokas, Marius creators_name: Roscian, Marjorie creators_name: Evans, Susan creators_name: Rouget, Isabelle creators_name: Herrel, Anthony creators_name: Moazen, Mehran creators_name: Souquet, Louise title: A comparative analysis of the puncturing abilities of cephalopod beak rostra using engineering tools ispublished: pub divisions: UCL divisions: B02 divisions: B04 divisions: C08 divisions: C05 divisions: D09 divisions: F45 divisions: F96 keywords: Beaks; Morphology; Cuttlefish; Squid; Octopod; Diet; 3D modelling note: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. abstract: Cephalopods, a diverse class of carnivorous marine predators, exhibit a wide range of feeding behaviours and foraging strategies related to their lifestyle, habitat and morphological adaptations. Their beaks play a crucial role in capturing and processing prey. This study investigates the link between the shape of the rostrum of cephalopod beaks and their function through a mix of experimental and computational approaches. Fourteen upper beak rostrum models from a range of cephalopod species, representing their morphological and ecological diversity, were 3D-printed, and subjected to uniaxial puncture tests. Force and displacement were recorded to estimate puncture ability. Finite Element Analysis (FEA) was used to explore the form–function relationship under loading conditions mimicking biting and pulling, analysing stress patterns across different rostrum morphologies. The results show that rostrum size significantly influenced puncture performance, with smaller rostra requiring less force and displacement for puncturing. However, larger rostra exhibited higher structural stiffness, suggesting increased vulnerability to stress during biting. Morphology-driven tests demonstrated species-specific differences in puncture abilities, with rostrum sharpness playing a crucial role. FEA results further indicated that longer and sharper rostra were more susceptible to stress, potentially impacting their overall structural integrity. The findings highlight the trade-off between rostrum size and sharpness in cephalopod beaks, with implications for prey selection and feeding efficiency. The study contributes to understanding the morpho-functional aspects of cephalopod beaks and their role in prey capture and consumption, shedding light on the evolutionary pressures shaping these remarkable marine predators. date: 2024-05-15 date_type: published publisher: Springer Science and Business Media LLC official_url: http://dx.doi.org/10.1007/s00227-024-04451-0 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2277776 doi: 10.1007/s00227-024-04451-0 lyricists_name: Moazen, Mehran lyricists_name: Evans, Susan lyricists_name: Didziokas, Marius lyricists_name: Souquet, Louise lyricists_id: MMOAZ42 lyricists_id: SEEVA33 lyricists_id: MDIDZ43 lyricists_id: LSOUQ59 actors_name: Evans, Susan actors_id: SEEVA33 actors_role: owner full_text_status: public publication: Marine Biology volume: 171 article_number: 131 issn: 0025-3162 citation: Wang, Simeng; Didziokas, Marius; Roscian, Marjorie; Evans, Susan; Rouget, Isabelle; Herrel, Anthony; Moazen, Mehran; Wang, Simeng; Didziokas, Marius; Roscian, Marjorie; Evans, Susan; Rouget, Isabelle; Herrel, Anthony; Moazen, Mehran; Souquet, Louise; - view fewer <#> (2024) A comparative analysis of the puncturing abilities of cephalopod beak rostra using engineering tools. Marine Biology , 171 , Article 131. 10.1007/s00227-024-04451-0 <https://doi.org/10.1007/s00227-024-04451-0>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10192662/1/Evans_s00227-024-04451-0.pdf