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Comparative morphology of shark pectoral fins.
Hoffmann SL, Buser TJ, Porter ME. Hoffmann SL, et al. J Morphol. 2020 Nov;281(11):1501-1516. doi: 10.1002/jmor.21269. Epub 2020 Sep 23. J Morphol. 2020. PMID: 32965713
Shark spiral intestines may operate as Tesla valves.
Leigh SC, Summers AP, Hoffmann SL, German DP. Leigh SC, et al. Among authors: hoffmann sl. Proc Biol Sci. 2021 Jul 28;288(1955):20211359. doi: 10.1098/rspb.2021.1359. Epub 2021 Jul 21. Proc Biol Sci. 2021. PMID: 34284626 Free PMC article.