ArticleProceedings. Biological sciences2017
Genital interactions during simulated copulation among marine mammals.
Article in Proceedings. Biological sciences, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 40 citations in OpenAlex.
- Current Advances in Cetacean Semen Cryopreservation and Their Application to Yangtze Finless Porpoise Conservation.Animals : an open access journal from MDPI · 2026Review
- Artificial insemination of bottlenose dolphins (Tursiops truncatus): A trial with simple instruments based on criteria for estrous behaviors linked to changes in estradiol levels and follicle development.The Journal of reproduction and development · 2025Article
- Structural analysis of the female reptile reproductive system by micro-computed tomography and optical coherence tomography†.Biology of reproduction · 2024Article
- Baculum shape complexity correlates to metrics of post-copulatory sexual selection in Musteloidea.Journal of morphology · 2023Article
- A Review and Case Study of 3D Imaging Modalities for Female Amniote Reproductive Anatomy.Integrative and comparative biology · 2022Article
- Mechanical properties of a female reproductive tract of a beetle and implications for penile penetration.Proceedings. Biological sciences · 2021Article
- 3D genital shape complexity in female marine mammals.Ecology and evolution · 2021Article
- Baculum shape and paternity success in house mice: evidence for genital coevolution.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Article
- Postcopulatory sexual selection and the evolution of shape complexity in the carnivoran baculum.Proceedings. Biological sciences · 2020Article
- Asymmetric and Spiraled Genitalia Coevolve with Unique Lateralized Mating Behavior.Scientific reports · 2020Article
- Female genitalia can evolve more rapidly and divergently than male genitalia.Nature communications · 2019Article
- Article
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Authors and funding
4 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Genitalia are morphologically variable across many taxa and in physical contact during intromission, but little is known about how variation in form correlates with function during copulation. Marine mammals offer important insights into the evolutionary forces that act on genital morphology because they have diverse genitalia and are adapted to aquatic living and mating. Cetaceans have a fibroelastic penis and muscular vaginal folds, while pinnipeds have a baculum and lack vaginal folds. We examined copulatory fit in naturally deceased marine mammals to identify anatomical landmarks in contact during copulation and the potential depth of penile penetration into the vagina. Excised penises were artificially inflated to erection with pressurized saline and compared with silicone vaginal endocasts and within excised vaginas in simulated copulation using high-resolution, diffusible iodine-based, contrast-enhanced computed tomography. We found evidence suggestive of both congruent and antagonistic genital coevolution, depending on the species. We suggest that sexual selection influences morphological shape. This study improves our understanding of how mechanical interactions during copulation influence the shape of genitalia and affect fertility, and has broad applications to other taxa and species conservation.
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