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...
Dennis Hansen
@dennish.bsky.social
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
#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.
#2025SVP ! If you want to get an idea of the major steps of 🐢turtle🐢 evolution, come to see my talk on Friday, Nov 14, 8:30 AM, Hall 8. My student Guilherme Hermanson talks just before me (8:15). 4 years of macroevolutionary research on turtles went into our talks, covering many unpublished results.
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!
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
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...
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...
biblhertz.it
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 🏛️
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).
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/...
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…
tetzoo.com
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
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
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
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)
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...
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...
rmdrc.blogspot.com
Madagascar Journal. Back at camp after a long day tracking Radiated tortoises in the spiny forest, this one found us!
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
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
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 👇
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!
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...
Jobs for Scientists | Senckenberg Society for Nature Research
senckenberg.de
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 🖤🤘)
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.)
Big thanks goes to @martinlaineolen.bsky.social for helping me brew this soup - do follow him! The 2nd edition of “Vatnik Soup — The Ultimate Guide to Russian Disinformation” is officially out! You can order your copy here: www.kleart.eu/webshop/p/va...
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 🗃️📜
‼️ Early Bird ends today ‼️ So if you are a student or a postdoc, this is the last day to register for free!
🚨 Early Bird Pricing Closes TODAY🚨 It's your last chance to sign up with discounted registration for the upcoming CPEG and CPB conference! Early bird pricing ends TODAY at MIDNIGHT (CET) 🕒 Don’t miss out and register now ⬇️ 👉 cpeg-cpb25.uzh.ch/en.html #CPEGCPB25
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
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)
"wHy dOn'T wE uSe AI insTEad oF Hooman aRtizts?"
OpenAI’s new image model is great at botany
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
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)