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baileys's profile
Bailey Steinworth
Bailey Steinworth
Bailey Steinworth
@baileys

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Bailey Steinworth

@baileys

jellyfish evo devo phd student @WhitneyLab • big fan of 🐢• she/her

St Augustine, FL
Joined May 2012

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    Bailey Steinworth‏ @baileys 18 May 2018

    So apparently Jordan Peterson has a section in his book about lobster social behavior. I’ve never written a long twitter thread before but YOU COME INTO ~*MY*~ HOUSE? Let’s talk marine invertebrate social behavior:

    6:13 PM - 18 May 2018
    • 4,991 Retweets
    • 17,144 Likes
    • Julien Racoon ✨🇸🇦🇵🇸 John Mark Cassie Who? 🏳️‍🌈Dark Souled🏳️‍⚧️🖤🤍💜 Amy Chief Marivs 🇪🇺 🎗 misteriridescent
    300 replies 4,991 retweets 17,144 likes
      1. New conversation
      2. Bailey Steinworth‏ @baileys 18 May 2018

        During mating season, certain beaches on the east coast of North America become horseshoe crab orgies in which each female is accompanied by at least one male (more likely two or more) fertilizing her eggs as she lays them.

        6 replies 84 retweets 1,723 likes
        Show this thread
      3. Bailey Steinworth‏ @baileys 18 May 2018

        The strongest, largest, youngest males hold onto the female’s carapace directly. Sometimes additional males hold onto those males. “Sneaker” males approach more subtly, from the side. All of these are viable reproductive strategies.

        10 replies 65 retweets 1,513 likes
        Show this thread
      4. Bailey Steinworth‏ @baileys 18 May 2018

        (Until reaching sexual maturity, horseshoe crabs tend to ignore each other unless stealing one another’s food.)

        3 replies 68 retweets 1,494 likes
        Show this thread
      5. Bailey Steinworth‏ @baileys 18 May 2018

        How about gastropods? Sea hares are hermaphrodites and also lay their eggs orgy-style with each individual simultaneously acting as male and female in multiple couplings. If only two are available, they take turns being “male” and “female.”

        7 replies 132 retweets 1,856 likes
        Show this thread
      6. Bailey Steinworth‏ @baileys 18 May 2018

        (I don’t know how they divide up the task of representing “chaos” and “order”)

        15 replies 124 retweets 3,887 likes
        Show this thread
      7. Bailey Steinworth‏ @baileys 18 May 2018

        The limpet Crepidula fornicata got its name because they’re often observed in piles, mating. They’re sequential hermaphrodites, meaning an individual is only one sex at a time but changes over the course of its life.

        7 replies 85 retweets 1,674 likes
        Show this thread
      8. Bailey Steinworth‏ @baileys 18 May 2018

        Sequential hermaphroditism is relatively common among marine invertebrates, since sperm is cheap and can be easily produced while you’re still small, but eggs are costlier and easier to make once you’ve built up body mass.

        12 replies 143 retweets 1,933 likes
        Show this thread
      9. Bailey Steinworth‏ @baileys 18 May 2018

        How about our earliest-diverging relative, the ctenophore aka comb jelly? Most are hermaphrodites and often self-fertilize.

        9 replies 63 retweets 1,405 likes
        Show this thread
      10. Bailey Steinworth‏ @baileys 18 May 2018

        They can cross-fertilize and may even communicate to coordinate spawning.

        1 reply 49 retweets 1,252 likes
        Show this thread
      11. Bailey Steinworth‏ @baileys 18 May 2018

        In this context, jellyfish seem positively heteronormative: in many species (including my fave, Cassiopea) there appear to be separate sexes, and females demonstrate a degree of parental care by brooding early embryos and larvae.

        3 replies 53 retweets 1,352 likes
        Show this thread
      12. Bailey Steinworth‏ @baileys 18 May 2018

        However, asexual reproduction is also a vital part of maintaining jellyfish populations.

        9 replies 54 retweets 1,286 likes
        Show this thread
      13. Bailey Steinworth‏ @baileys 18 May 2018

        Anyway, if you’re going to try to use marine invertebrate behavior as an example of how hierarchical, patriarchal social order is “natural,” I’m not buying it.

        19 replies 375 retweets 4,469 likes
        Show this thread
      14. Bailey Steinworth‏ @baileys 18 May 2018

        If you’re using lobster behavior to justify existing human social hierarchies, you’re less interested in lobster behavior than you are in maintaining those social hierarchies.

        140 replies 1,829 retweets 11,827 likes
        Show this thread
      15. End of conversation

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