True Facts: The Bizarre Ways Cephalopods Make Bebes

Join me at https://www.patreon.com/truefacts/
Merch: https://ze-true-store.myshopify.com/
TF Educational channel: ⁨ @truefactseducational9288

Apostólico, L.H., Marian, J.E.A.R. Dimorphic male squid show differential gonadal and ejaculate expenditure. Hydrobiologia 808, 5–22 (2018). https://doi.org/10.1007/s10750-017-3145-z

Apostólico LH, Marian JEAR. Getting a grip on the squid hectocotylus: Sexually dimorphic glandular system underlies spermatophore transfer in Doryteuthis pleii. Zoology (Jena, Germany). 2026 Mar;175:126328. DOI: 10.1016/j.zool.2026.126328. PMID: 41855842.

Arkhipkin, A., & Laptikhovsky, V. (2010). Observation of penis elongation in Onykia ingens. Journal of Molluscan Studies, 76(3), 299–300. https://doi.org/10.1093/mollus/eyq019

Battaglia, P. et al. (2021). When nature continues to surprise: observations of the hectocotylus of Argonauta argo. The European Zoological Journal, 88(1), 980–986. https://doi.org/10.1080/24750263.2021.1970260

Cuccu, Danila et al. (2013). Development of sexual organs and fecundity in Octopus vulgaris Cuvier, 1797 from the Sardinian waters. Mediterranean Marine Science. 14. 270. 10.12681/mms.412.

García-Flores, M.et al. (2019). Morphological and histological description of the reproductive system of Octopus hubbsorum . Invertebrate Reproduction & Development, 63(4), 268–281. https://doi.org/10.1080/07924259.2019.1646674

Hall, K.C., & Hanlon, R.T. (2002). Principal features of the mating system of a large spawning aggregation of the giant Australian cuttlefish Sepiaapama (Mollusca: Cephalopoda). Marine Biology, 140, 533-545.

Huffard, C. L., & Bartick, M. (2015). Wild Wunderpus photogenicus and Octopus cyanea employ asphyxiating ‘constricting’ in interactions with other octopuses. Molluscan Research, 35(1), 12–16. https://doi.org/10.1080/13235818.2014.909558

Iwata Y, et al. How female squid inseminate their eggs with stored sperm. Curr Biol. 2019 Jan 21;29(2):R48-R49. doi: 10.1016/j.cub.2018.12.010. PMID: 30668945.

Morse P and Huffard CL (2019) Tactical Tentacles: New Insights on the Processes of Sexual Selection Among the Cephalopoda. Front. Physiol. 10:1035. doi: 10.3389/fphys.2019.01035

Ibáñez CM et al. (2019) Sexual Selection and the Evolution of Male Reproductive Traits in Benthic Octopuses. Front. Physiol. 10:1238. doi: 10.3389/fphys.2019.01238

López Galán A. et al. (2020) Dynamic Courtship Signals and Mate Preferences in Sepia plangon. Front. Physiol. 11:845. doi: 10.3389/fphys.2020.00845

Marian JE. Spermatophoric reaction reappraised: novel insights into the functioning of the loliginid spermatophore based on Doryteuthis plei. J Morphol. 2012 Mar;273(3):248-78. doi: 10.1002/jmor.11020. Epub 2011 Sep 28. PMID: 21956428.

Nakayama A. et al. Ritualized ink use during visual courtship display by males of the sexually dimorphic cuttlefish Sepia andreana. Ecol Evol. 2024 Feb 2;14(2):e10852. doi: 10.1002/ece3.10852. PMID: 38314312; PMCID: PMC10835506.

Noriyosi Sato et al. High-speed camera observations of copulatory behaviour in Idiosepius paradoxus: function of the dimorphic hectocotyli, Journal of Molluscan Studies, Volume 79, Issue 2, May 2013, Pages 183–186, https://doi.org/10.1093/mollus/eyt005

Sato N, Kasugai T, Munehara H. Spermatangium formation and sperm discharge in the Japanese pygmy squid Idiosepius paradoxus. Zoology (Jena). 2014 Jun;117(3):192-9. doi: 10.1016/j.zool.2014.02.001. Epub 2014 Apr 18. PMID: 24813852.

Sato, Noriyosi et al. “Sperm transfer or spermatangia removal: postcopulatory behaviour of picking up spermatangium by female Japanese pygmy squid.” Marine Biology 160 (2012): 553 - 561.

Schnell, A.K. et al. Female receptivity, mating history, and familiarity influence the mating behavior of cuttlefish. Behav Ecol Sociobiol 69, 283–292 (2015). https://doi.org/10.1007/s00265-014-1841-5

So Ryung Shin, Jung Jun Park, Jung Sick Lee. Spermatophore formation in Todarodes pacificus, Tissue and Cell, Volume 104, Part 2,2027,103985, ISSN 0040-8166, https://doi.org/10.1016/j.tice.2026.103985.

Villar P. S. et al. ,A sensory system for mating in octopus.Science392,96-101(2026).DOI:10.1126/science.aec9652

Vlasova, E.V., Sabirov, R.M., Golikov, A.V. Reproductive Biology of the Golden Cuttlefish Sepia esculenta (Cephalopoda, Sepiida). Diversity 2023, 15, 455. https://doi.org/10.3390/d15030455

Wada, T., Takegaki, T., Mori, T. et al. Sperm displacement behavior of the cuttlefish Sepia esculenta (Cephalopoda: Sepiidae). J Ethol 23, 85–92 (2005). https://doi.org/10.1007/s10164-005-0146-6

Wodinsky, J. Reversal and transfer of spermatophores by Octopus vulgaris and O. hummelincki . Mar Biol 155, 91–103 (2008). https://doi.org/10.1007/s00227-008-1010-3

Yamamoto, J., Adachi, K., Bower, J.R. et al. Close-up observations on the spawning behavior of a captive Japanese flying squid (Todarodes pacificus). Sci Rep 9, 19739 (2019). https://doi.org/10.1038/s41598-019-56071-0 Receive SMS online on sms24.me

TubeReader video aggregator is a website that collects and organizes online videos from the YouTube source. Video aggregation is done for different purposes, and TubeReader take different approaches to achieve their purpose.

Our try to collect videos of high quality or interest for visitors to view; the collection may be made by editors or may be based on community votes.

Another method is to base the collection on those videos most viewed, either at the aggregator site or at various popular video hosting sites.

TubeReader site exists to allow users to collect their own sets of videos, for personal use as well as for browsing and viewing by others; TubeReader can develop online communities around video sharing.

Our site allow users to create a personalized video playlist, for personal use as well as for browsing and viewing by others.

@YouTubeReaderBot allows you to subscribe to Youtube channels.

By using @YouTubeReaderBot Bot you agree with YouTube Terms of Service.

Use the @YouTubeReaderBot telegram bot to be the first to be notified when new videos are released on your favorite channels.

Look for new videos or channels and share them with your friends.

You can start using our bot from this video, subscribe now to True Facts: The Bizarre Ways Cephalopods Make Bebes

What is YouTube?

YouTube is a free video sharing website that makes it easy to watch online videos. You can even create and upload your own videos to share with others. Originally created in 2005, YouTube is now one of the most popular sites on the Web, with visitors watching around 6 billion hours of video every month.