204 pointsby gk15 days ago22 comments
  • jjmarr5 days ago
    Gift link with video, because a static archive doesn't do the opening video justice:

    https://www.nytimes.com/2025/03/03/science/cuttlefish-camouf...

    • HenryBemis5 days ago
      Here the link to the mp4 file (from my InternetDownloadManager)

      https://vp.nyt.com/video/2025/03/03/135038_1_03tb-cuttlefish...

      • indrora5 days ago
        There are 4 videos in the article, each with different forms of predatory approach.

        It's very neat.

        • codetrotter5 days ago
          Using the above gift link as argument to yt-dlp, you can download all four videos in one fell swoop. If you want to just watch the four videos and not read the article.

            yt-dlp --add-metadata "https://www.nytimes.com/2025/03/03/science/cuttlefish-camouflage-huting-crabs.html?unlocked_article_code=1.1U4.y9tH.Aujw5YLUNl3v&smid=url-share"
          • justaj4 days ago

              [NYTimesArticle] Extracting URL: https://www.nytimes.com/2025/03/03/science/cuttlefish-camouflage-huting-crabs.html?unlocked_artic...UNl3v&smid=url-share
              [NYTimesArticle] cuttlefish-camouflage-huting-crabs: Downloading webpage
              ERROR: [NYTimesArticle] cuttlefish-camouflage-huting-crabs: Unable to download webpage: HTTP Error 403: Forbidden (caused by <HTTPError 403: Forbidden>)
            • codetrotter3 days ago
              Maybe you have to update yt-dlp, or maybe the link has been used by too many people? For me it worked.
    • iammiles4 days ago
      I appreciate the gift but I suspect sleep tonight will be less than appreciative.
      • h0l0cube4 days ago
        I don’t think the crabs are confusing their prey so much as paralyzing them with fear
    • chiyc5 days ago
      Thanks! I didn't realize the static archive was missing the video. These are better than what's on Santon's site.
    • Terr_4 days ago
      Hmm, for Firefox on Android, the videos animate once and then stop, still-framed forever. Ditto in desktop mode. Weird.

      Time to go over to a real computer I guess.

      • x______________3 days ago
        The playback was broken on Firefox android from both the main site and direct url here as well, but was able to watch the video correctly after downloading it locally.
      • vekatimest4 days ago
        They don't play on Chrome for Android, either.
      • vijaybritto4 days ago
        Works fine on Brave
    • Apofis3 days ago
      Why not post the OP with this link?
    • ge965 days ago
      Damn that was quick the attack

      reminds me of Nope

  • pkilgore5 days ago
    Defector did it better (and included the videos): https://defector.com/this-is-the-last-thing-you-see-before-y...
    • roughly5 days ago
      Defector is fantastic and Sabrina Imbler is an absolute treasure - gift link, to share the wealth: https://defector.com/this-is-the-last-thing-you-see-before-y...
    • junon5 days ago
      I find cuttlefish normally very cute but dear god this is nightmare fuel.
    • alorimer5 days ago
      This article is so much better than the original NYT one. Great writing and no paywall.
    • sph3 days ago
      How the hell is this news site loading so fast, with no popups, nag screens, in-body ads, call-to-actions and autoplaying videos? Jesus, since when do we have the technology to achieve that?!
  • NikolaNovak5 days ago
    In Peter Watts' novel Blindsight, human protagonists enter a completely alien world - not Star Trek "people with rubber ears", but different biology/consciousness-patterns/etc entirely.

    As one of the plot points, 'aliens' (again, not the Star Trek humanoid kind) eventually 'hack' the human nervous/visual systems through various means (electromagnetic fields, visual patterns, movement types, etc) to hide things in plan sight.

    My internal vision of scenes from that book is eerily similar to the videos in the article.

    (On aside, would highly recommend Peter Watts to Hacker News audience :)

    • Baeocystin5 days ago
      Seconded. Blindsight remains one of my favorite meditations on the Mind's I (not a typo) that I've read.

      Echopraxia, the 'sequel' (the events occur at the same time as the events in Blindsight, with a completely different group of characters) has grown on me over time, too. At the very least, it gave me a great appreciation for Portia. https://en.wikipedia.org/wiki/Portia_(spider)

      • NikolaNovak4 days ago
        Same! Echopraxia did not really resonate on the first read, and I think it was misaligned expectations. As Peter himself said in one of his Reddit AMAs, it starts with action and continues with a lot of action.

        But it's fundamentally not about action; in fact, it's hard to see the protagonists having much agency, and certainly no clear goals. It's almost existential in that sense; but based on that beginning, my mind was searching for a story and hero and conclusion.

        On the second read, having the framework of the events in my mind, I could focus on the ideas, and it resonated much better. Now I re-read both books semi-regularly (just like Dune and Neuromancer:)

        • Baeocystin4 days ago
          Yep! I'm glad to hear that someone else had the same misaligned initial expectations. Keeping it vague to avoid spoilers, but the fact that I'm still unsure if the protagonist's action at the very end of the story was an example of agency or not has been a lot of fun to think about.
      • clarionbell4 days ago
        Isn't that what Children of Time by Tchaikovsky is for? :)
        • Baeocystin4 days ago
          Ha! Good point. No argument there.
    • fennecfoxy4 days ago
      Same thing with the Expanse series. The TV version captured Ilus very well I think, and some of the creatures with a completely different biology. Especially the terrifying idea of something as simple as some algae type stuff that ends up making everyone blind for a certain time, because why wouldn't our eyes be an attractive for alien microorganisms.
  • nanna4 days ago
    The deceptive capabilities of cuttlefish has been known since ancient Greece. The 2C AD author of hunting and fishing books Oppian wrote extensively about the 'cunning devices' of cuttlefish, as well as octopuses, which he considers to be par excellennce foxes of the sea.

      Yea, the crafty Cuttle-fish also has found a cunning manner of
      hunting. From her head? grow long slender branches, like locks of
      hair, wherewith as with lines she draws and captures fish, prone in
      the sand and coiled beneath her shell.
      
      They have seated in their heads a dark muddy fluid blacker than pitch,
      a mysterious drug causing a watery cloud, which is their natural
      defence against destruction. When fear seizes them, immediately they
      discharge the dusky drops thereof and the cloudy fluid stains and
      obscures all around the paths of the sea and ruins all the view ; and
      they straightway through the turbid waters easily escape man or haply
      mightier fish. ... Such are the cunning devices‘ of fishes.
  • nsbk5 days ago
    What amazing creatures! One of the coolest experiences I’ve lived scuba diving was an interaction with a cuttlefish. It would come towards me in its alien like swimming style and crazy eyes, while pulsating super cool colors, getting very close to my face and then quickly swimming back and forth and up and down, speeding up and slowing down, like performing some kind of ritual dance.

    I think it was trying to hypnotize me, like Futurama’s good old Hypnotoad. What was the motivation behind, I will always wonder

    • z25 days ago
      The colors understanding is even more remarkable given that they are colorblind in the sense that they do not have different color cones, and likely rely on a very imperfect process of chromatic aberration that they can somehow translate back into color.

      https://www.science.org/content/article/how-colorblind-cuttl...

      • nsbk5 days ago
        Color me impressed. Remarkable indeed, thanks for the link.
    • hermitcrab5 days ago
      I spent 15 minutes watching a group of about 8 cuttlefish on a reef. There were clearly lots of complex group interactions going on between them. It is also amazing fast they can change colour.
    • aidenn04 days ago
      Perhaps it was saying "So long, and thanks for all the fish?"
      • nsbk3 days ago
        Or 42 in Cuttlefishish
  • teruakohatu5 days ago
    Crabs predate cuttlefish in the fossil record by a significant amount of time (~50 million years), but both have had a good 100 million years to battle it out and crabs are still blinded by the camo. Cuttlefish maybe have not exerted enough evolutionary pressure on crabs to make them adapt, or there are crabs that have adapted and we just don't know which species or have not discovered them yet.
    • mmooss4 days ago
      Somehow, predators succeed in many scenarios that have plenty of time for evolution to solve the problem for prey. But of course it's also solving the problem for hungry predators.

      It raises an interesting question about the limits of evolutionary adaptation, and how the evolutionary competition reaches a stable equilibrium.

    • willvarfar4 days ago
      Its an 'arms race'. As crabs adapt to the current crop of cuttlefish ruses, the cuttlefish also adapt to overcome again.

      An aside, but the recent book by Dawkins "The Genetic Book of the Dead: A Darwinian Reverie" is fascinating and explains how you can look at an animal and understand the environment of its ancestors. You can read it as a kind of massive autobiography of the species and detect waypoints on its evolutionary journey.

    • lukas0994 days ago
      They could be at an evolutionary equilibrium already.
    • kuhewa4 days ago
      I'm not sure it's that unique of a situation though, most prey organisms have some antipredator adaptations but rarely are they foolproof, just like rarely are predatory adaptations like mimicry/camouflage/crypsis absolutely foolproof.
  • chiyc5 days ago
    I was hoping the article would include a video, but there's a great 12 second clip on Matteo Santon's site: https://matteosanton.com/research/
    • Jtsummers5 days ago
      > I was hoping the article would include a video

      It has several videos.

      • chiyc5 days ago
        Yep, I missed that the archive link doesn't have video.
    • froh5 days ago
      please revisit the HN article, several sibling comments now share the videos
  • DaiPlusPlus5 days ago
    I’m trying to understand how/what the cuttlefish attacks the crag with - but I can’t tell if the white thing that comes out from under its… “Cthluthu mouth-tentacles” is a tongue, a beak, a bone, a pincer, a spine, or something else.

    Wikipedia’s page on cuttlefish anatomy doesn’t help, unfortunately :/

    • adrian_b5 days ago
      Cuttlefish, like squid, have 8 short tentacles around the mouth plus other 2 much longer tentacles, which are thinner except for their ends, which are expanded and which have suckers.

      The 2 long tentacles are normally kept coiled and covered by the short tentacles, so they are not visible.

      When the cuttlefish catches prey, the 2 long tentacles are extended together extremely quickly and they attach to the prey (much like a chameleon catches insects with its very long tongue).

      Then the 2 long tentacles are retracted quickly, bringing the prey to the mouth that is also hidden between the 8 short tentacles. The mouth has a beak, similar to a parrot beak, which is used to kill and consume the prey.

      See the drawing:

      https://en.wikipedia.org/wiki/Cuttlefish#/media/File:Seba_mo...

      The drawing shows the long tentacles as you could see them on a dead cuttlefish. As I have said, in the living cuttlefish you can see them only for a fraction of a second, when catching prey and bringing it to the mouth.

      Also, the 2 long tentacles are extended together, one besides the other, they never stay limp and separated, like in the drawing or in a dead animal.

      • robocat5 days ago
        > The drawing shows the long tentacles as you could see them on a dead cuttlefish. As I have said, in the living cuttlefish you can see them only for a fraction of a second

        Yeah: stop drawing dead butterflies https://www.emilydamstra.com/please-enough-dead-butterflies/

        Once you've seen the pattern, you see the same issue with other art. I bought a biology style painting because I liked the intentional dead-animal style (both a bird and some insects).

  • __MatrixMan__5 days ago
    Plenty of this going on in this BBC earth video: https://youtu.be/rbDzVzBsbGM?feature=shared&t=130

    Clearly this is the inspiration for the design of the mindflayers.

  • jongjong4 days ago
    This was an immersive experience. I was trying to make sense of what I was seeing, putting my face closer to the screen to take a good look at the creature... Then WHACK! paywall! It hit me before I could understand what was happening.

    I can relate to that crab.

  • pmdulaney4 days ago
    It would be nice to see some high speed video, like the kind they use to show a bullet going through an apple.
  • deadbabe5 days ago
    Horrifying, does the video cut suddenly because what happens next is too fast for the brain to comprehend before being destroyed?
    • miunau4 days ago
      They are hitting the plexiglass in front of the camera and crabs, so I assume it's nothing interesting to look at science wise.
    • 7thaccount5 days ago
      I thought when the cuttlefish starts blinking, it essentially becomes invisible to the crab
    • snorrah5 days ago
      a video has nothing to do with a brain
      • Dylan168074 days ago
        The video is representing what a crab sees. An abrupt cut is either implying that the crab stops seeing (for brain damage reasons), or the video is not quite living up to the promise, and they are asking which it is.
  • IamTC5 days ago
    I always reserve budget for night diving. Below the waters, night time is like peak hour traffic, with much better chances of spotting a cuttlefish. The colors they exhibit is beautiful. You can only see them at night and with a torch light as red gets filtered out even at shallow depths.
  • elihu5 days ago
    Couldn't help but be reminded of this scene from that movie where Tom Hanks plays Fred Rogers: https://youtu.be/9AzXX_2BrVk?t=63
  • cm20124 days ago
    My local aquarium has cuttlefish, I love those little guys
  • jbs7894 days ago
    I did a quick search to understand how the crabs eyes work. If they see less detail then this must be even more convincing.
  • ProAm5 days ago
    I would totally fall for that too....
  • prxtl5 days ago
    Immediately got reminded of the creatures in Perdido Street Station -- Terrifying!
  • asadm5 days ago
    why do these videos just cut at the moment???
  • surfingdino4 days ago
    Cookie and subscription pop-ups?
  • tptacek4 days ago
    Big Jordan Peele Nope energy.