This is why the kneecap is a useful thing

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@skeletal-science
This is why the kneecap is a useful thing
So uh
They found a whole lot of the rest of Spicomellus, aka one of the oldest ankylosaurians
Turns out it's also the spikiest
And apparently sacral shields and tail weapons go all the way back too
(Image from Maidment et al., 2025).
Itâs Fossil Friday, so letâs get a leg up on the weekend with these colossal limbs! Snapped circa 1899, this archival photo from the Museumâs digital collections depicts a Museum preparator standing beside the fossilized limbs of dinosaurs discovered in Wyoming. The larger bones belong to sauropods while the smaller bones belong to a theropodâlikely Allosaurus.  Want to learn more about dinosaurs? Plan your next visit to the Museum!
Photo: Image no. 46523 / Š AMNH LibraryÂ
Happy Fossil Friday! This archival image, snapped sometime before 1960, depicts duck-billed dinosaurs on display, side by side, at the Museum. Also known as hadrosaurids, these massive herbivores were the dominant plant-eaters in many areas of the world during the Late Cretaceous about 85 million years ago. In addition to their duck-like beaks and webbed front feet, hadrosaurs had powerful jaws with hundreds of blunt teeth that were ideal for grinding fibrous land plants.
See these hadrosaurs and more at the Museum! Plan your visit.
Bones of the Arm and Hand
-The Hydropathic Encyclopedia 1857
evangelical christians are missing out with the whole not believing in evolution thing, that shit's cool as fuck
like look at this shit
this is an example of what are known as homologous structures. because of the similarities in bone structure, it suggests that all creatures shown here have a common ancient ancestor
essentially these all have the same bones, but shifted, stretched, fused, and warped by evolution and time to serve the purpose the animal needed
and they all do have a common ancestor, as does all life on earth
look at this crazy ass tree showing EVERYTHING started as a teeny tiny ancient bacteria and evolved and grew over millions of years to fucking EVERYTHING, all life being connected to this singular point
idk abt you guys but to me that's cool as fuck and I hate that people don't teach it in schools based on what a book said
i hate how mammal-centered and human-centered the last diagram is but otherwise yeah that's absolutely amazing
Detail from marble floor, Cornaro Chapel, Church of Santa Maria della Vittoria, Rome, Italy, 17th century  Â
How do horses flick their tails?
they got bones in there
Okay I. I know this is about the tail which like thatâs cool and all and fun facts BUT-
ARE YOU KIDDING ME?? THEY LITERALLY CALL THE THIRD LONG BONE OF THE HIND LEG THE METATARSAL?! EXCUSE ME BUT THAT IS NOT A FOOT-
Just like. Why. Why would you call it a metatarsal. W. H. Y.
sorry man, it's called that because that's exactly what it is.
the foot. Bone
My uni used to host this bio-art photography thing to show the pretty side of science and I had this pic waiting for over a year now, but they didnât make an another edition, so I might as well post it here!
These little dudes are 5-day-old zebrafish larvae, fixed with paraformaldehyde and stained with Alcian blue to visualize cartilage. And the background is just the dark field of the microscope and some random mess floating around in glycerol.
Learning to draw - 1888 - via Internet Archive
This is what #bonecancer looks like
These #extinct animals are Discosauriscus Pulcherrimus, that lived approximately 275 million years ago in the late Permian period. The carbonised #bones were found near Boskovice, in the Czech Republic. đ¨đż â¨.â¨Follow @neojurassica to see more #prehistoric wonders! đŚâ¨.â¨đĽ www.neojurassica.com â¨đŚ Dinosaur Specialistsâ¨đŚ´ Genuine Fossilsâ¨âď¸ Display Customisationâ¨đ Free UK Deliveryâ¨âď¸ International Deliveryâ¨.â¨#discosaur #dinosaur #extinction #evolution #skeletons #palaeontology #paleontology #paleobiology #geology #science #osteology #dead #jurassicpark #jurassicaorld #neojurassica â¨https://www.instagram.com/p/CL5AB7qJFjZ/?igshid=21znmzbqlnif
Do you want to contribute to top quality medical research? To be a doctoral student means to devote oneself to a research project under supe
PhD position in skeletal growth. Web address via here: https://kidoktorand.varbi.com/en/what:job/jobID:376902/type:job/where:4/apply:1
Bird man
Pierre Belon (1517â1564) was a French traveler, naturalist, writer and diplomat. Like many others of the Renaissance period, he studied and wrote on a range of topics including ichthyology, ornithology, botany, comparative anatomy, architecture and Egyptology.
In his L'Histoire de la nature des oyseaux (1555) he included two figures of the skeletons of humans and birds marking the homologous bones. This is widely used as one of the earliest ideas on comparative anatomy.
Text from Wikipedia: https://en.wikipedia.org/wiki/Pierre_Belon
Image (also used in the thumbnail for this page) is from Wikicommons: https://commons.wikimedia.org/wiki/File:Belon_Oyseaux.jpg Pierre Belon (1517-1564), Public domain, via Wikimedia Commons
Enjoy, have fun, cheer up
"In a floor of a triclinium one of the panels is that of a skeleton, with a text âEuphrosynosâ: âenjoy, have fun, cheer upâ. A notice explains that in the 1st century BC skeletons started to be used. This mosaic is from the 3rd or 4th century when scenes of bathing and banquets (convivium) represent the most important activities of Roman socio-cultural life."
Text and image (also used in the wallpaper for this page) from Wikicommons:
https://upload.wikimedia.org/wikipedia/commons/0/0d/Antakya_Archaeology_Museum_Skeleton_mosaic_sept_2019_5915.jpg
Dosseman, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons
"SOX9 keeps growth plates and articular cartilage healthy by inhibiting chondrocyte dedifferentiation/osteoblastic redifferentiation"
Ablation of the chondrogenic transcription factor Sox9 leads to rapid cessation of longitudinal growth and articular joint destruction.