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Dennis Hansen

@dennish.bsky.social
1.6K followers 1.1K following 1.8K posts

Concept- & content developer new Natural History Museum UniZurich; Island biologist w. fetish for giant tortoises (Aldabrans!) & rewilding 🐢 Fond of Gessner (x2) & Scheuchzer; lover of old books, older fossils, history of science & music of metal

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Reposted by Dennis Hansen
Henry Gee 亨利·纪 @endofthepier.bsky.social · 16/11/2025
THE WONDER OF LIFE ON EARTH is published 5 Feb 2026 and is available for pre-order. For more details inquire within: www.panmacmillan.com/authors/henr...
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Serjoscha Evers @sirjoscha.bsky.social · 16/11/2025
#2025SVP For people who missed my talk: I’m happy to give this or longer versions via zoom/in person for your seminars/colloquiums. Being based at a small museum w/ little daily exchange among peers, it’s a great opportunity for me to stay connected & for you to learn about our shelled overlords.
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Noam Vogt-Vincent @nvogtvincent.co.uk · 22/10/2025
We're advertising a PhD project to investigate the hydrodynamics of Aldabra Atoll @oxuniearthsci.bsky.social! We are looking for a student with strong quantitative skills and interest in ocean modelling. Competitive funding available through ILESLA. Please share with anybody who may be interested!
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Julianne Zelda Kiely 🌿Commissions open🌿 @palaeojules.bsky.social · 24/10/2025
Reposting an oldie for #FossilFriday! This is Kalligramma brachyrhyncha, a medium-sized kalligrammatid ( #Mesozoic lacewings) from the Middle #Jurassic of Inner Mongolia, China. It is known to have had eyespots on its wings and may have acted as a pollinator for #bennettitaleans. #paleoart
A brown butterfly or moth-like insect with an eyes pot on its wing sitting on a yellow flower like cone.
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Jessie Wei-Hsuan Chen @jessiewhchen.bsky.social · 20/10/2025
Join us in Rome or online for a seminar on plant illustrations on 6 November! 🪴🌻🌿 Through images of mandrakes and ferns, @fabribald.bsky.social and I will be discussing issues in the role of images in early modern botany. www.biblhertz.it/events/43483...
biblhertz.it
The Role of Images in Early Modern Botany
This seminar brings together two experts on sixteenth- and seventeenth-century plants. Zooming in on the dilemma of visualizing plants (or not), and how images could become part of epistemic methods w...
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Celine Camps @celinecamps.bsky.social · 13/10/2025
A magnificent exhibition: "Nürnberg Global, 1300-1600," showcasing stunning #MedievalSky & #EarlyModern objects—paintings, engravings, goldsmithing & scientific objects, woodcuts, books (of hours), architectural models, sculptures, armor, textiles, coins. It's SO good! 🗃️ #HistSci #ArtHistory 🏛️
Entrance to the new exhibition "Nürnberg Global, 1300-1600" at the Germanisches Nationalmuseum in Nuremberg.Albrecht Dürer's famous woodcut of the Rhinoceros. Partially disassembled Schlüsselfelder Ship from 1503, to show how the nef can be filled with wine. The Archangel Raphael and Tobias in limewood made by Veit Stoß, 1516.
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Raphael Moreno @stereospondyl.bsky.social · 17/10/2025
After two years of hard work, I’m proud to announce that our new special exhibition @smnstuttgart.bsky.social is now open for the public – Meet Triassic Life: Dawn of the world of reptiles (1/7).
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Darren Naish @tetzoo.bsky.social · 15/09/2025
Might there have been hybrids between Mesozoic (non-bird) #dinosaurs, perhaps even between groups that had been separated for 10s of million of years? YES, the existence of such animals is very likely. But could we >identify< such animals? Let's see... tetzoo.com/blog/2025/9/...
tetzoo.com
In Quest of Hybrid (Non-Bird) Dinosaurs — Tetrapod Zoology
Might there have been hybrid dinosaurs in the deep geological past? If so, could we identify them from the fossil record? Let’s discuss…
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Thony Christie @rmathematicus.bsky.social · 12/09/2025
The maniacal, scribbling gnomes in the cellar of Ball Mansions have tossed of another tome: Alchemy: An Illustrated History of Elixirs, Experiments, and the Birth of Modern Science And it’s gorgeous! #histsci
The Book Cover of Philip Ball's Alchemy: An Illustrated History of Elixirs, Experiments, and the Birth of Modern Science
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Daniel Bellingradt @dbellingradt.bsky.social · 10/09/2025
In other news, I'll be talking about #earlymodern news media next week in Copenhagen. This is the first workshop of the new "Objects of Knowledge" network, organized by @lauraskouvig.bsky.social and @mariasimonsen.bsky.social comm.ku.dk/research/inf... #histknow meeting #newshistory, #skystorians
Screenshot from my powerpoint slide of "Early Modern News Media as Objects of Knowledge". The talk will be given on the 18th of September at the workshop “Objects and things: what are objects of knowledge?”.
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Dennis Hansen @dennish.bsky.social · 11/09/2025
Back again. Did I miss anything important?
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Andrea Hart @andreahart.bsky.social · 10/09/2025
Delighted to have come across this lovely book for a patron visit - Isabella Sinclair’s Indigenous Flowers of the #Hawaiian Islands (1855). The first book published with colour images of Hawaiian flowering plants. A great blog here blog.biodiversitylibrary.org/2019/03/isab... #rarebooks #flowers
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Dr Matt Dempsey @sketchy-raptor.bsky.social · 09/05/2025
Published today in Biological Reviews: "New perspectives on body size and shape evolution in dinosaurs" - the biggest paper from my PhD (my favourite chapter, too). doi.org/10.1111/brv.... Here's a thread outlining some of our key findings. (1/10)
Cover image promoting the new research paper "New perspectives on body size and shape evolution in dinosaurs", written by Matthew Dempsey, Samuel R. R. Cross, Susannah C. R. Maidment, John R. Hutchinson, and Karl T. Bates, and published in Biological Reviews. Image shows a 3D Tyrannosaurus rex skeleton enveloped in simple geometric hulls, accompanied by an artist's impression of T. rex in life.
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Anthony of the Badlands @mosasaurologist.bsky.social · 10/04/2025
One of my "secret projects" I've recently finished is making a copy of the arm of Dakota the dinomummy. Here's the blog update on it with shoutouts to @boydpaleo.bsky.social and @himmapaan.bsky.social and @uglyfossils.bsky.social for their work on the paper/exhibit rmdrc.blogspot.com/2025/04/dako...
rmdrc.blogspot.com
Dakota Goes Digital: Replicating a Mummy Arm
Reonstruction by Natee Puttapipat from Drumheller et al., PLoS One, 2022 Confession time: I love giving nicknames to the specimens that I fi...
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Kevin Gepford | The Tortoise Project @thetortoiseproject.bsky.social · 10/04/2025
Madagascar Journal. Back at camp after a long day tracking Radiated tortoises in the spiny forest, this one found us!
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Jim Labisko💚🐸🦎🐍🐢🦇🐆🧪💙😷4/4 @jimlabisko.bsky.social · 13/02/2025
The Lives of Frogs — it's real! #frogs #amphibians #conservation #ecology #naturalhistory #biodiversity Available in all good book shops (and probably some bad) from 20th May 🧪 @princetonupress.bsky.social @uclcber.bsky.social @ucl-pnl.bsky.social @ucllifesciences.bsky.social @ucl.ac.uk
The author of a new book on frogs holding a copy, showing the cover which depicts a fantastic poison frog (Ranitomeya fantastica) carrying a tadpole on its back.
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Animal Aspects (Art History Animalia) @animal-aspects.bsky.social · 06/04/2025
George Catlin (USA, 1796-1872) The Great Ant-Eater, 1854/1869 oil on card mounted on paperboard 46.2 x 61.9 cm (18 3/16 x 24 3/8 in.) National Gallery of Art DC 1965.16.255 www.nga.gov/collection/a... “THE GREAT ANT-EATER, visiting the author’s camp on the Rio Yucayali.” #GiantAnteater #Anteater
Digital scan of the cited artwork; oval composition depicting a giant anteater in side profile seemingly surprising two dark-skinned men in a rainforest campground (identified as Rio Yucayali area), one in a hammock and one by the campfire. 

“When Catlin exhibited [this] Cartoon Collection in New York in 1871, he published a catalog listing all the works. The catalog entries often included additional information about the subject of each painting. Catlin's catalog entry for this painting follows.
Cart. No. 481.    
THE GREAT ANT-EATER, visiting the author’s camp on the Rio Yucayali. See Catlin’s ‘Last Rambles.’—Appleton.”closeup of the anteater and two mencloseup of the giant anteater
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Evelyndroid's Aperture Science and Bugge-Finding 🏳️‍⚧️🕷️ @apsciencebylyn.bsky.social · 03/04/2025
Sand grains as big as her head ❤️
The tiny red nugget wasp, in white sand, individual grains like boulders around her
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Karim Zanaty @extinctfineart.bsky.social · 30/03/2025
Call-out to paleoartists! The virtual 3D exhibition goes into its second round and is looking for paintings, animations, 3D models, poems,… This will be the start of a continuous exhibition of contemporary paleoart. Registration starts on April 1st! More infos below 👇
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Steve White @sharkbitesteve.bsky.social · 27/03/2025
I'm happy to announce that Mesozoic Art v.II has now gone to press. Looks incredible and thanks to all the artists who contributed, and to @tetzoo.bsky.social and everybody at @chiffchat.bsky.social for their patience, resilience and hard work. Book goes on sale 25th September - don't miss it!
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Mario Coiro @lepidodendron.bsky.social · 01/04/2025
Do you love #fossil plants? Are you searching for a #PhD position? I am recruiting a doctoral student to join my group at the Senckenberg Research Institute in Frankfurt/M! Deadline on the 11th of May #paleobotany #paleontology #plants #botany www.senckenberg.de/en/career/sc...
senckenberg.de
Jobs for Scientists | Senckenberg Society for Nature Research
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Dennis Hansen @dennish.bsky.social · 01/04/2025
A sure sign the world is going to hell in a handbasket: The new Nortt album sounds happy (sarcasm off; it is of course deliciously dark, doomy, and slow 🖤🤘)
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Anders Puck Nielsen @anderspucknielsen.dk · 01/04/2025
Rumors have it that this edition of the book also has a fascinating foreword about disinformation and post-truth populism by a Danish military analyst. (And also that a Danish version of the book will be available very soon.)
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Ben Gross @bhgross144.bsky.social · 01/04/2025
Pieter Vogelvormer, the Dutch naturalist who bred the finches that #Darwin later studied in the Galapagos, was born #OnThisDay in 1608. Read about this little-known contributor to the history of #evolution in a very special #ScientistOfTheDay post: www.lindahall.org/about/news/s... #histSTM 🗃️📜
Portrait of Pieter Vogelvormer, oil on canvas, by Jan Lievens, 1629 [1636?], Norton Simon Museum, Pasadena (nortonsimon.org)Another leaf with sketches of finches modified and bred in Mauritsstad, Ecuador, by Pieter Vogelvormer; a thorn-wielding finch is on the cactus at left; the turtle-nosed finch at right is one which did not survive long enough on the Galapagos Islands for Darwin to observe and collect it; Mauritshuis Museum, The Hague (mauritshuis.nl/en)
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Kristína Kocáková @kristinakocakova.bsky.social · 31/03/2025
‼️ Early Bird ends today ‼️ So if you are a student or a postdoc, this is the last day to register for free!
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Tina Asmussen @tinasmussen.bsky.social · 31/03/2025
I’ve just been informed by my publisher that my book on Athanasius Kircher is now sold out. If you’re still interested in reading it, you can download the open access e-book via Zenodo: doi.org/10.5281/zeno.... Thanks to everyone who has shown interest in the book! #AthanasiusKircher
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Richard Fallon @richardfallon.bsky.social · 31/03/2025
Digitised museum collections are full of surprises. For example here's Reinier Vinkeles's etching of a harp-playing putto, ploughing farmer, crystal grotto, and pair of fossil Mosasaurus jaws. That's surprising. (@rijksmuseum.bsky.social: id.rijksmuseum.nl/200388929)
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Dennis Hansen @dennish.bsky.social · 27/03/2025
"wHy dOn'T wE uSe AI insTEad oF Hooman aRtizts?"
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Christine Mercer-Vernon| Floral Art @mercer-vernon.com · 27/03/2025
Detail crop from the sunflower painting I posted yesterday, because leaves in paintings never get the attention they deserve. Bonus daddy long legs, because I just love them. #art #painting #floralpainting #leaves #sunflowers #botanicalart #sciart @bsky.art
Detail crop from a small section of a large painting of yellow sunflowers, this section shows three stems and two large leaves. Crawling across a leaf is a daddy long legs, behind a stem is an ant crawling up.
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SHNH @sochistnathist.bsky.social · 26/03/2025
Swiss physician and naturalist Conrad Gessner was born #OTD in 1516. Considered one of the fathers of modern zoology and botany, he is perhaps best known for his monumental work Historia animalium. In it, he attempted to document every known animal at that time, including a few curve balls. (📸BHL)
The title page of Historia animalium showing a nice picture of a fish. One of the pages of Historia animalium showing the hippo, with an illustration of one biting a crocodile. Another page of Historia animalium showing some curious illustraions of fish men.
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Dennis Hansen @dennish.bsky.social · 26/03/2025
Happy 509th, Conrad G!
A glass of beer - cheers!
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Dr Susannah Lydon @susieoftraken.bsky.social · 26/03/2025
I'm so used to crinoids as grey things in grey rocks. This is a great reminder that living crinoids are much more than that, and would have been in the deep past too.
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John McCafferty @jdmccafferty.bsky.social · 26/03/2025
Two tulips with dead frog and caterpillar Jacob Marrel, 1639 Fair enough (Rijksmuseum)
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Dolly Jørgensen @dollyjorgensen.bsky.social · 26/03/2025
Ghosts Behind Glass: Encountering Extinction in Museums coming your way in October 2025. Only $20 in paperback for a full color book with 80 pictures! press.uchicago.edu/ucp/books/bo...
Cover of Ghosts behind glass book with a Carolina parakeet specimen under a bell jar
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Dr. Bethany Allen @bethanyjallen.bsky.social · 26/03/2025
Today seems like a good day to repost this…
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Dorothy Bishop @deevybee.bsky.social · 26/03/2025
saying you’ll stand up for attacks on science in the US while honouring the person responsible for the attacks is like handing out bandages to people who are being savaged by your pet dog, while doing nothing to restrain him
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Dennis Hansen @dennish.bsky.social · 26/03/2025
Abandoning everything you stood for, just to not make fascist billionaires and anti-science crusaders uncomfortable - well done, @royalsociety.org - it takes talent to be SO utterly pathetic and cowardly. www.theguardian.com/technology/2...
theguardian.com
Royal Society decides not to take disciplinary action against Elon Musk
Exclusive: Fellows argue Musk has violated code of conduct but council believes investigation ‘could do more harm than good’
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Maaike Dirkx 🎨 👀 @maaiked.bsky.social · 25/03/2025
Paleography pearl. "1672 on May 12, baptized Grietje, illegitimate daughter of the godless deceased Engelbert Jans and the filthy whore Bauwe Edses, adulteress" But nonetheless baptized. 😳
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jonathan r goodman @jonathanrgoodman.bsky.social · 25/03/2025
Can’t recommend enough @robfoley.bsky.social’s book of essays on modern higher ed, Notes from Ivory Flats, which you can order here: www.amazon.co.uk/Notes-Ivory-... Find out, for example, what the risk assessment for Darwin’s Beagle would look like today — and what it says about academic life now
Picture of book titled Notes From Ivory Flats
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Dennis Hansen @dennish.bsky.social · 25/03/2025
Lunchtime on Aldabra Atoll - where sharing the shade with gorgeous giants makes any day feel like #TortoiseTuesday 💚🐢🌿 #FieldworkArchive
An Aldabra giant tortoise seeking as much shade as possible behind the trunk of a tree that is almost entirely engulfed by a strangler fig. Some aerial roots from the strangler fig on the branches above the tortoise hang down and frame the tortoise like a curtain.
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Ainsley S @americanbeetles.bsky.social · 13/03/2025
Beware the Britifh Sea-Pen
“This Sea-Pen has a round flefhy ftem […] and fingle rows of tentaculated fuckers on each fin”
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Andy Farke @andyfarke.bsky.social · 24/03/2025
"I'm going to go touch fossil" is the equivalent I use in the office, when it has been a day of way too many emails and meetings, and not enough time with dead things.
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Martyn Warren (he/him) @martynwarren.bsky.social · 23/03/2025
~ human artists use only one piece to convince people to follow you ~
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Dennis Hansen @dennish.bsky.social · 22/03/2025
I love this painting of a fish fossil (Palaeoniscum?) from Johs. Gessner's collection 🖤 Viewed straight on, the fish is hard to see, but viewed from the side/with light, it springs to life - just like in real fossils of this type (ZBZ NFF4; gouache, mid-1700s) #SciHist #SciArt #EarlyModern
A pair of matching pieces of dark shale, with the positive- and negative-side imprints of a herring-sized fossil fish faintly visible.The same shale slates seen from a low side-view angle - now the silvery scales and outline of the fish is clearly visible.
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Suzanne Karr Schmidt @drkarrschmidt.bsky.social · 20/03/2025
Stede Bonnet as book bindings, a thread... Snatched back from the jaws of the hellsite, I'll be doling them out slowly in honor of @rhysiedarby.bsky.social and @ladypenni.bsky.social's birthdays! All the books reside at #NewberryLibrary! #OurFlagMeansDeath #OFMD 1/12
Stede Bonnet in teal jacket with buttons, black cravat, and gloriously tousled hair, facing right, with hand on decorative plant, in front of sail.Embroidered book binding of a three-masted ship facing left with four winds blowing gusts from the corners and cavorting whales in the water. From an 1800 edition of Robinson Crusoe embroidered by Charlotte Hawkins. 
Case Y 155 .D3642
https://i-share-nby.primo.exlibrisgroup.com/permalink/01CARLI_NBY/i5mcb2/alma999314368805867
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Dr Elsa Panciroli @elsa-panciroli.bsky.social · 21/03/2025
Back in Black. Ever wondered what colour mammals were in the time of dinosaurs? Well a sample of six #MesozoicMammals suggests they were *drum roll* all dark brown/black. The original goths, I love 'em more than ever. Congrats to the authors! www.science.org/doi/10.1126/...
science.org
Mesozoic mammaliaforms illuminate the origins of pelage coloration
Pelage coloration, which serves numerous functions, is crucial to the evolution of behavior, physiology, and habitat preferences of mammals. However, little is known about the coloration of Mesozoic m...
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Milda Kvizikevičiūtė @mildakviz.bsky.social · 21/03/2025
When job descriptions are vague, but carrying random objects with style is a must. From 16th century #AlbumAmicorum #Renaissance #earlymodern #NationalLibraryOfLithuania
A 16th-century illustration of a man in a Purple and black Renaissance outfit with a ruffled collar, black cape, and black shoes. He carries a large, ornate pillow on his shoulder, holding it with one hand while carrying a small hat in the other. The handwritten text above reads “Habito Vinitiano” and describes him as a servant carrying a cushion.A 16th-century illustration of a man dressed in purple and black Renaissance clothing, wearing a black hat with gold trim. He is carrying an ornate, red and gold chair on his shoulder, gripping one of its curved arms. The handwritten text identifies him as another servant tasked with carrying a chairA 16th-century illustration of a man in Renaissance attire, holding a large, elegant parasol with a golden frame and pink fabric. He wears a black hat with a gold band and walks forward, holding the parasol upright. The handwritten text describes him as a servant carrying an umbrella.
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Dennis Hansen @dennish.bsky.social · 21/03/2025
Perfect arrival timing for @nhmbryozoa.bsky.social's new book this #FossilFriday! 🤗
A book on fossils with a cross-sectioned ammonite on the cover. It stands on a table with a fossil ammonite standing partly in front of it.
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franz @franzanth.bsky.social · 20/03/2025
@dennish.bsky.social your people? :)
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Dennis Hansen @dennish.bsky.social · 20/03/2025
Do museums make your heart sing? Do you love paleontology/palaeontology? Are you an amazing 3D-sculptor? 3x YES to the above? Apply to come work with us on the prototype of a unique installation here in Zurich! The call is open until 31st of March 🌿🦕🐌🪲 #SciArt #3dmodelling #3dmodeling
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