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.

Serjoscha Evers@sirjoscha.bsky.social · 9mo ago

#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talks just before me (8:15). 4 years of macroevolutionary research on turtles went into our talks, covering many unpublished results.

Powerpoint title slide of my SVP talk, showing a transparently rendered turtle shell with skull, limbs, and neck inside. The title of the talk is "Drivers and constraints in the evolution of the turtle body plan".

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

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 👇

Bild

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.)

Vatnik Soup@vatniksoup.bsky.social · last yr.

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...

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.