• Gloria@sh.itjust.works
      24·
      6 months ago

      Thursday is a Holiday in Germany, so many will take the Friday off as a bridge-day for a long weekend. That means that Wednesday is this weeks Friday. And as we all know that “Thursday is the small Friday”, todays Tuesdays is basically the small Friday of the week and this Tuesday is almost already at lunchtime, so there is no much incentive to start things, now that the weeks is almost over. I will arrange things on my table for two more hours and then prepare on this Tuesday for next weeks Monday. PS: I am exhausted

    • Today@lemmy.world
      3·
      6 months ago

      First real day of summer break. Yesterday was a holiday in the US… Woke up to 80mph winds and crazy rain about 530 this morning. Animals are not happy!

      • recursive_recursion [they/them]@programming.devEnglish
        1·
        6 months ago

        been real busy,

        • made a small mistake on the instance so trying to fix that while I’ve got time,
        • trying to create linux guides for my friends that want to switch over since windows is trash
        • and dealing with everyday family stress

        Can’t say it’s bad though, the occasional boardgames on the weekends with friends is my motivator

        thanks for asking and hope your week’s been good/great!🤗🌻

  • ChaoticNeutralCzech@feddit.de
    2·
    6 months ago

    The spines are composed of nanocrystalline hydroxyapatite, protein(collagen), and water—the same materials that scales are made of. But unlike other scales, which originate during development from the mesoderm layer of the skin or dermis, the spines appear to have evolved from specialized cells located under the surface of the skin.

    These cells are called skeletal progenitor cells, and they are also the source of other hardened body parts, like the jaws, fins, and skulls. When the skeleton of a puffer fish is inflated, the progenitor cells form spines and other bony appendages in a process known as ossification.

    The ossification process is fairly quick—it takes about 24 hours for the spines to fully develop. But when the fish is deflated, the ossification cells quickly revert to their unmodified state—and the spines come tumbling down.

    So the spikes get more bone-like when inflated?? There are also “fibers” connecting the spines that rotate the spikes outward when taut. It must be quite difficult to rebuild the skeleton for display!