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Next article FreeAbout the CoverPDFPDF PLUSFull Text Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmailPrint SectionsMoreA complete embryo of Amphioctopus fangsiao (top) and a magnified image of developing suckers (bottom).In this issue (pp. 82–93), R. Kimbara, H. Kohtsuka, and T. Miura explore developmental processes of sucker formation during embryogenesis in two octopus species, Octopus parvus and A. fangsiao. In O. parvus, in which hatchlings are pelagic, sucker formation stops at a relatively early embryonic stage. In contrast, in A. fangsiao, which exhibits a benthic posthatching lifestyle, sucker production continues throughout embryogenesis. These findings suggest that the heterochronic shift of sucker formation processes would result in different types of morphologies that are adapted to the lifestyles of each species.The image of the embryo was obtained using a stereomicroscope. The fluorescent image of suckers, in which nuclei (DNA) and cytoskeletons (F-actin) were stained, respectively, with DAPI (cyan) and rhodamine-phalloidin (red), was obtained using a confocal laser scanning microscope.Credits: Photos: Toru Miura, Misaki Marine Biological Station, University of Tokyo, Japan. Cover design: Toru Miura and Olivia Kinker (University of Chicago Press). Next article DetailsFiguresReferencesCited by The Biological Bulletin Volume 244, Number 2April 2023 Published in association with the Marine Biological Laboratory Article DOIhttps://doi.org/10.1086/727853 © 2023 The University of Chicago. All rights reserved.PDF download Crossref reports no articles citing this article.