#invertebrate skeleton

[statecryptids]

Another Halloween invertebrate skeleton! Today it’s a plcozoan.

Placozoa are tiny, blob-like marine organism with only nine known types of cells held together in three cell layers like a sandwich. They have no defined organs and they feed by engulfing food in a pouch formed by their underside like an amoebae.

Genetic analysis indicates that they are the most basic lineage of extant animals and belong in their own phylum, Placozoa. They’re pretty much real-world versions of RPG ooze monsters.

This design was an interesting challenge. Other skeletonized Halloween invertebrates are at least based on bilateral animals with defined body structure. But how does one make a “skeleton” for an organism that has no defined shape or organs?

You make each cell a “bone”, that’s how. Although placozoans don’t have nervous systems, their cells do communicate through peptide secretions which may have given rise to neurons in other animals (or rather, this method of cellular communication is a model for how the earliest animal groups may have developed a nervous system). Running with this idea, I made each cell into a little skull since that’s where the nervous system “hub” is in bony animals.

Placozoans have structures called “shiny spheres” that release toxins to deter predators. Playing on this defensive aspect, I represented the spheres here as little protective fanged mouths.

Placozoans also have “crystal cells” which contain crystals of aragonite that act as statocysts to help them orient against gravity. Here I’ve represented them as diamond-shaped bones.

[strawlessandbraless]

Skeleton Panda Sea Tunicate Appreciation Post!!! 💀 🐼 🌊

Clavelina ossipandae, the skeleton panda sea tunicate is a species of colonial ascidian, also known as sea tunicates, a group of sessile, marine filter-feeding invertebrates. Just some funky little guys!

First discovered near Kume Island in Japan by local divers, pictures of the animal attracted media attention in 2017. But they weren't given their formal taxonomic description until 2024

Love to sea it 🌊

[uncharismatic-fauna]

Uncharismatic Fact of the Day

Shrimp don't have skeletons, but don't tell that to the skeleton shrimp! The common name for this group of amphipods accurately describes the thin, delicate structure of their bodies, which helps them to effectively hide among seaweeds and corals. Due to their pale, ephemeral appearance, these shrimps are also sometimes known as ghost shrimp!

(Image: A photo of Caprella acanthifera by Chris Isaacs)

[jupiterswasphouse]

[PHOTOS TAKEN: MAY 11TH, 2024 | Image IDs: Three photos of an orange and black, orange-patched smoky moth on a rusted and dirty metal surface /End IDs.]

[patheticmosasaur1]

tonight's invertebrate........caprella polyacantha

you can throw anything at him and he will endure it!

toss him into the hottest, most skin-melting fluid possible and he will come out unscathed and confused

force him to partake in the most morally defunct biological experiment and he will still be there, unharmed but maybe with a scratch or too

even the most emotionally upsetting event does nothing to him!

how does he do this?? with the power of hope....

...I lied he is aided by an incomprehensible geometric shape older than time itself

..........spookiness rating: 63.85% I don't know how to feel about this

photographs by leslieh

help I'm running out of choices I want to post snails, arachnids n whatnot but I also want to focus on lesser known invertebratesim having a really hard time choosing ehsjgshevsqnsgwcacacgjififrbjtkrkfmrmtmmhjioxixzuhgfaaaaaaaahahhapohihfsfsfsfsffsfssfsfsfdaffafafsfsffsfsfshhhdueuejennbcbcnnckekoepwowhhd

[themesopelagiczone]

meet the gum-leaf skeletonizer (Uraba lugens), which is a caterpillar that stacks its old moulted heads on top of its current head! it's also known as the mad hatterpillar. they use their heads as a defence mechanism, and they can stack up to six or seven heads!

newscientist | newsweek | bbc science focus

photos: alan henderson (minibeast wildlife au) | alan henderson

[misagenda]

I’m minding my own business in the dentist’s waiting room while wearing a tshirt with an image of a skeleton giving the ok sign. A lady sitting across from me began pointedly scoffing and eventually said “that shirt is satanic, you’re disrespecting jesus.”

I don’t know what possessed me in that moment (probably satan) but I immediately retorted “I don’t want to alarm you, but you’ve also got a skeleton.”

She was offended I would even imply she had a skeleton.

Y’all this bitch invertebrate.

[hrokkall]

Idea: the layers are the regions of these iterators, V II's regions would be based on greed, wrath, Fraud, and heresy, V I's would be based on Limbo, Lust, Gluttony, Violence, and Treachery?

This is a super cool concept, but this is also where my lack of Rain World knowledge is going to start to show a little bit. I'm aware that iterators are giant superstructures, but I was under the impression that they didn't make up the whole of the environment of Rain World. As such, I don't think these layers would be contained entirely within the two iterators (if that's not what you were implying… oops. Ignore this prelude in that case.)

Having said that, if I were to assign each a single layer within (even if the inner-structures of iterators aren't made up of a single cohesive aesthetic like Ultrakill's layers are), I'd say VII's would be most similar to Limbo and VI's would be Violence/the Mouth Of Hell. (As in, VII's superstructure is full of artifacts from the ancients—similar to canon V2 they see themself as being sort of the last remnants of that past society, a role they're hesitant to give up… and then VI's superstructure is bloody and full of industrial structures and doors that lock and inconvenient 0G segments and is generally just a nightmare to traverse through to the point where most wildlife that goes in there are incredibly brave, incredibly lost, or incredibly stupid.)

I'm in full support of the regions mirroring the in-game layers though. Sisyphus's spawn area would resemble Greed (which would be closer to VII) whereas Minos's would resemble Lust (closer to VI). I'd imagine they meet up somewhere in either the Gluttony or Heresy-equivalent regions and stick together from there. It's unclear how they met in Ultrakill canon so I can't make a 1:1 Rain World equivalent… maybe they both fought off the same lizard together.

[good-night-space-kid]

I’ve been offered the internship I really wanted <3

I moved to North Dakota kind of on a whim with the dream of being a paleontologist, but this position puts me actually in the paleontology collections (literally my dream job long term) so like. Damn. I guess I’m doing this. I might be able to actually become a paleontologist for real.

[statecryptids]

Xenoturbella skeleton inspired by all those cool anatomically and biologically inaccurate skeletons that pop up at Halloween.

Xenoturbellans are a simple group of bilaterian animals with slug-like bodies that consist of only two cell layers. They have no organs or structures other than a ciliated furrow that rings the middle of their body, and an opening on the bottom that serves as both mouth and anus. Xenoturbellans are in the phylum xenacoelomorpha along with acoelomorphs, another extremely simple group of flatworm-like creatures. They are believed to be the most basal bilaterian animal group.

Xenoturbella have no bones, of course. But this is a Halloween Xenoturbella, so anatomical correctness goes out the window.

[its-bones-baby]

Invertebrates ain’t shit

[jupiterswasphouse]

[PHOTOS TAKEN: MAY 9TH, 2024 | Image IDs: Four photos of two orange and black, orange-patched smoky moths mating on top of a stick, the wings of the male covering the majority of the female /End IDs.]

[six-demon-bag]

YES I GOT A HORRIBLE CENTIPEDE SKELETON

this is everything ive ever dreamed of im so happy

[spacefinch]

Happy Halloween

It's INCORRECT SKELETON SEASON, folks!!

[ahhvernin]

For a Spring/Summer Halloween treat please Google:

Pink Underwing Moth Australia Caterpillar

:D You're welcome.

[ghosts-and-glory]

Content warning for cartoon depictions of gore, violence and body horror.

Full comic page under the cut

Another case of I got lost in the sauce and the visual style on the corpses is very different. Trying to design the invertebrate bones, especially Shamura’s, made me feel like I’m the idiot at the spirit Halloween building the nonsense animal skeletons.

I’m so very close to getting to the part of this where I actually started drawing. This has lowkey turned into a character study on Narinder and Shamura.

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