How do wombats poop cubes?

(science.org)

61 points | by bushwart 1 day ago

13 comments

  • thebigship 1 minute ago
    This is most amazing when you click into the study[0] and see the supporting materials linked to at the bottom like a .mov of a rotating 3d model of wombat poop[1]

    [0]https://pubs.rsc.org/sm/article-abstract/17/3/475/708006/Int...

    [1]https://pubs.rsc.org/sm/article-supplement/708006/mov/d0sm01...

  • comrade1234 3 hours ago
    I climb a lot around the forests where I live in Switzerland. In one area there are a lot of yew trees - deadly to mammals. Just 30 grams of the needles will stop your heart. The bright red berry tastes very nice and isn't poisonous but the seed, if just one seed has a crack in it and you swallow it it will stop your heart in about thirty minutes. German kings have used it to kill themselves after being defeated by Roman armies so that they don't have to surrender.

    Anyway, there's an animal here, I assume marmots, that swallows the berries whole and shits them out as a half-digested diarrhea onto the tops of rocks, logs, anywhere high enough to mark their territory. Probably better than shitting out a charcoal briquette that you hope won't roll over... but they seem to know not to chew and crack the seeds.

    • zhoBEENG 3 hours ago
      If they die within 30 minutes, you would never see the scat of those who crack the seeds.
      • xattt 48 minutes ago
        There has to be a term for these very specific claims. 30 g in 30 minutes? Give me LD50 numbers.
        • 3eb7988a1663 23 minutes ago
          Taxine alkaloids[0]

            The estimated lethal dose (LDmin) of taxine alkaloids is approximately 3.0 mg/kg body weight for humans.[27][28] Different studies show different toxicities; a major reason is the difficulty of measuring taxine alkaloids.[29]
          
          It goes on to say that rats are ~20mg/kg, which would put a human at somewhere less than 1.4grams.

          Which is close enough to, "any exposure at all will kill".

          [0] https://en.wikipedia.org/wiki/Taxine_alkaloids

    • nickdothutton 1 hour ago
      They are planted in graveyards in the UK, it prevents grazing animals from entering and soiling up the place. The animals seem to know to keep away. They cant nibble the grass without getting a mouthful of the needles.
    • MillironX 3 hours ago
      We covered yew extensively in toxicology class in vet school, but I didn't know about any animals that eat the berries. My favorite fact about yew is that the Iowa State Lloyd Veterinary Center is named after a toxicologist, yet has yew planted for decoration all around the building.
    • xattt 50 minutes ago
      There was a yew bush on my walk to primary school. When berries were in season, I used to pick and squish the berry between my fingers because the shape was unique (berry with a seed that sticks out‽) ands its slimy feel. Thank goodness it never amounted to anything more, even through transdermal absorption.
      • idiotsecant 17 minutes ago
        Oh wow I think we had these on the way to school when I was a kid too. Everyone told us not to eat them so we used to put the berries in our mouth and spit them out to show how tough we were. Wow we were very very stupid kids.
  • franciscop 38 minutes ago
    A bit of a tangent but I've read this phrase almost verbatim in another article[1] today:

    > "This study is really good," says Sunghwan Jung, a biophysicist at Cornell University who studies the mechanics of animal movements and was not involved with the research. It shows, he says, that the guts of these animals "are very special."

    The other article [1] quote:

    > It’s “an impressive step,” said Jack Szostak (opens a new tab), who studies the origins of life at the University of Chicago and was not involved in the research. “I don’t know of any other effort to put together an artificial cell from biological components that has progressed so far.”

    Are these editorial guidelines to get an independent read? Just coincidence? I don't think they are LLM bits because I expect better from these magazines, but it's too eerily similar.

    [1] https://www.quantamagazine.org/for-the-first-time-a-cell-bui...

  • lemming 54 minutes ago
    The always excellent Oatmeal:

    We need to have a conversation about wombats

    https://theoatmeal.com/comics/wombats

    Possibly NSFW, depending on your W.

  • plasticeagle 3 hours ago
    "exceptional excrement" "sharp-sided scat" "To get to the bottom of the mystery" "...aptly titled journal Soft Matter."

    Great to see someone having some fun writing an article.

  • AussieWog93 17 minutes ago
    Surely it has something to do with their square arseholes.
  • changoplatanero 4 hours ago
    All that work I did for my PhD and I could have been studying this topic instead...
  • classichasclass 1 hour ago
    If someone hasn't submitted this for an Ig Nobel, it would be a calamity.
  • vlian2088 31 minutes ago
    >Hu speculates that because the animals climb up on rocks and logs to mark their territory, the flat-sided feces aren't as likely to roll off from these high perches.

    and those who of them who shit cubes ended up more likely to procreate...?

  • jbosh 2 hours ago
    The pun in the title is just world class.
  • ultimoo 53 minutes ago
    well written and has a distinctly human feel to it, compared to the slop we get to read these days.
  • NDlurker 3 hours ago
    I was so confused by wombat poop the first time I saw it. Wasn't sure what I was looking at so I poked it with a stick.
  • ggm 1 hour ago
    I'm reminded of Professor Hermione Lee of the University of York English department facing a stuttering student explaining the contextual meaning of the word "quaint" in middle English poetry:

      Spit it out man! It means CUNT.
    
    Can we stop with this "poop" nonsense. Number #2 and other forms, it's shit English, it's stupid. It's feces. Or shit. Or that fine old English word Turd.