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Christopher M. Smith

@csmithevoanatomy.bsky.social
231 followers 170 following 27 posts

Asst Prof @ Fairfield University | Paleoanthropologist & Evolutionary Anatomist👂 🧠 💀 | www.csmithevoanatomy.com

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Reposted by Christopher M. Smith
Dr. Mary T. Silcox @marytsilcox.bsky.social · 13/08/2026
The University of Toronto Mississauga invites applications for a tenure stream Assistant Professor position in Paleoanthroplogy. Deadline to apply is October 15, 2026. Full details: jobs.utoronto.ca/job/Mississa...
jobs.utoronto.ca
Assistant Professor - Palaeoanthropology
Assistant Professor - Palaeoanthropology
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Nicolas Martin @nclsmartin.bsky.social · 12/08/2026
🚨 New paper out in @natcomms.nature.com! We used bony labyrinth morphology to reconstruct over 40,000 years of human population history in northeastern Africa, a region where ancient DNA is almost entirely unavailable. A thread 🧵 ⬇️ www.nature.com/articles/s41... 1/11
nature.com
Bony labyrinth morphology reveals deep population history and isolation among Homo sapiens in prehistoric northeastern Africa (44–3 ka) - Nature Communications
Little is known of the Homo sapiens population history in late prehistoric northeastern Africa. Using inner ear morphology from 148 individuals, this study documents 40.000 years of human evolution, i...
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Armita R. Manafzadeh @armanafzadeh.bsky.social · 12/05/2026
Our special issue of the @journalofanatomy.bsky.social (co-edited by Virginia Abdala and me) on the evolution of joints in vertebrates is out now — check it out! onlinelibrary.wiley.com/toc/14697580...
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SICB journals @sicbjournals.bsky.social · 12/05/2026
IOB "In #odontocete #cetaceans (toothed #whales, #dolphins, and #porpoises), a #palatopharyngeal sphincter permanently anchors the laryngeal inlet in the #nasopharynx and isolates the airway from the gut tube." from A W Vogl , et al doi.org/10.1093/iob/... #science #biology #biomechanics

Fig. 1 The general arrangement of muscles and structures associated with the soft palate in a typical #mammal. Art-work ©2024 Alex Boersma (used with permission).
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Christopher M. Smith @csmithevoanatomy.bsky.social · 12/05/2026
New paper out in @pnas.org led by Marine Cazenave shows different locomotor repertoires in Swartkrans Paranthropus and Sterkfontein Australopithecus! www.mpg.de/26471037/swa...
mpg.de
Swartkrans Paranthropus and Sterkfontein Australopithecus  had different locomotor repertoires
Paranthropus robustus from southern Africa combined upright walking and more frequent climbing than the older Australopithecus in the same region
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American Association for Anatomy @anatomyorg.bsky.social · 17/04/2026
WE’RE BAAAAACK!🥼🧬🧠🫀 #anatomy26 #annualmeeting #anatomy #albuquerque #anatomyconnected26
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American Association for Anatomy @anatomyorg.bsky.social · 17/04/2026
We hope to see everyone at Anatomy Connected 2026 aka the BEST Anatomy meeting! 🥼🧬🧠🫀 #anatomy26 #annualmeeting #anatomy #albuquerque #anatomyconnected2026
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Zach Cofran @dizachster.bsky.social · 09/04/2026
I love the bony labyrinth and so should you lawnchairanthropology.com/2026/04/09/t...
Modified movie poster from the 1986 film Labyrinth. The word "Labyrinth" is scrawled fantastically across the top. Beneath, David Bowie playing Jareth the Goblin King holds out a crystal ball containing 5 bony labyrinths.
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Amélie Beaudet @ameliebeaudet.bsky.social · 27/03/2026
🚨 Two postdoc positions open in the #LHOSA team at @palevoprim.bsky.social! Passionate about Australopithecus and hominin paleobiology? Skilled in virtual study of long bones or #GIS applied to hominin-bearing sites? Join us 👇
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Christopher M. Smith @csmithevoanatomy.bsky.social · 23/03/2026
Out today in @pnasnexus.org! We present evidence for a new way to characterize the vestibular organs, challenging traditional assumptions about how the human inner ear is organized.🧵 1/5 academic.oup.com/pnasnexus/ar...
academic.oup.com
Evolutionary modularity of the primate vestibular system: Morphological distinction of otolithic and canalicular organs
Abstract. The mammalian inner ear is traditionally divided into two systems: the peripheral vestibular system (for balance) and the cochlea (for hearing).
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American Museum of Natural History @amnh.org · 18/03/2026
🚨Science news! Recent research led by Meghan Forcellati, a comparative biology Ph.D. student in the Museum’s Richard Gilder Graduate School, has uncovered new clues about reptile evolution by studying the bony encasements of the inner ears of living lizards and snakes.
bit.ly
Bony Inner Ears Offer Clues to Lizard Evolution | AMNH
Scientists hoping to reconstruct how extinct lizards and snakes lived have turned their attention to the inner ear.
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The Anatomical Record @anatrecord.bsky.social · 18/03/2026
📢 Call for Papers! We invite submissions for special issue “Development, Evolution, and Comparative Anatomy of the Larynx.” This issue aims to highlight interdisciplinary work exploring the development, evolution, and structure–function relationships of the larynx across species. 📅 Deadline: Sep 15
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Caley Orr @caleyorr.bsky.social · 29/01/2026
I'm happy to present our paper in which we describe hominin postcrania from Drimolen. Many of these specimens sat in a drawer at Wits Uni for > 20 years. It's amusing to me that the image here includes two fossils in that drawer that were labeled "hominin" but that we decided are not! 1/
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W. Andrew Barr @wabarr.bsky.social · 21/01/2026
I am really excited to share news of this new jaw...until now Paranthropus had been conspicuously absent from the Afar. Fieldwork at Mille-Logya is not easy, and this fossil is the result of years of very hard work (and a lot of days of dry screening by our team)! www.nature.com/articles/s41...
nature.com
Afar fossil shows broad distribution and versatility of Paranthropus - Nature
With its attribution to Paranthropus, a 2.6-million-year-old partial mandible expands the range of the genus into the Afar region of Ethiopia and adds to our understanding of hominin evolution in east...
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jeffspear.bsky.social @jeffspear.bsky.social · 13/01/2026
This is great. It's not as in depth as the suggestions here, but at my JC in grad school we always asked two questions at the end: "What is the most valuable thing we can take from this paper?" and "What's the next step we would take related to that most valuable thing?" It was fantastic.
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WitmerLab at Ohio University @witmerlab.bsky.social · 14/01/2026
Just finished this awesome new-ish book by @nicolasmathevon.bsky.social on animal communication. It covers a lot of ground with a huge diversity of species—& it's a blast to read! Great for those interested in sensory ecology. (I had skulls of all the cover animals, so I snapped a photo! 😃)
The book The Voices of Nature by Nicolas Mathevon sits on a table surrounded by skulls of the animals depicted on the cover (which were all drawn by the author's dad, Bernard Mathevon!) The skulls are American robin (Turdus migratorius, OUVC 9766), spectacled caiman (Caiman cf. C. crocodilus, OUVC 11550), northern elephant seal (Mirounga angustirostris, OUVC 9581), and spotted hyena (Crocuta crocuta, OUVC 10571).
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WitmerLab at Ohio University @witmerlab.bsky.social · 30/10/2025
Today's bombshell in @nature.com by Lindsay Zanno & James Napoli @jgn-paleo.bsky.social (bit.ly/4qBE6ng) shows that putative juvvy T. rex fossils actually are Nanotyrannus. I reviewed the manuscript, so Nature invited me to write the News & Views commentary. Free link: rdcu.be/eNv94 🦖
The figure used in my News & Views commentary. I generated the CT-based rendering of the holotype skull of Nanotyrannus lancensis (CMNH 7541), based on a recent scan. The lower image was done by the Nature art department.Here's the free link to the print version that I'm permitted to share: https://rdcu.be/eNv94. You can't download it but you can screen-capture its two pages if you really need a copy.Our casts of (bottom) the holotype of Nanotyrannus lancensis (CMNH 7541), (middle) the newly named holotype of N. lethaeus (BMRP 2002.4.1), and (top) T. rex (AMNH 5027). We published on CMNH 7541 in 2010 (http://bit.ly/3X5nCGm).
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Christopher M. Smith @csmithevoanatomy.bsky.social · 15/10/2025
New craniodentally associated P. boisei post crania! ✋ 🦶 from Koobi Fora 🔥 Congrats to carriemongle.bsky.social caleyorr.bsky.social et al!
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Thomas R. Holtz, Jr. @arctomet.bsky.social · 09/10/2025
www.nature.com/articles/d41...
nature.com
Mark Norell obituary: palaeontologist who showed that dinosaurs still walk among us — as birds
Through fieldwork and innovative research, he transformed how scientists and the public perceive the prehistoric world.
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Marta Mirazon Lahr @martamlahr.bsky.social · 02/10/2025
Like you, I've read so many nice things about Jane Goodall's amazing life and legacy today, but this video of the realease of the chimp called Wounda is beyond words ♥️ If only we could find the will to stop destroying the extraordinary natural world around us... youtu.be/ClOMa_GufsA?...
youtu.be
Wounda's Journey - Jane Goodall Witnesses Release of Chimpanzee Into New Island Sanctuary Site
YouTube video by Dr. Jane Goodall & the Jane Goodall Institute USA
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Liverpool EMB lab @livevobiomech.bsky.social · 17/07/2025
Interested in the functional morphology of mammal heads and want to come join us in Liverpool? Apply for this exciting new PhD project with Alana!
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Christopher M. Smith @csmithevoanatomy.bsky.social · 14/04/2025
Grateful to Dr. Jasmine Pan and @commsbio.bsky.social for the opportunity to share my journey of using art as a gateway into science. It was a pleasure to discuss how creativity can shape and enhance scientific exploration! www.nature.com/articles/s42...
nature.com
From medical illustration to evolutionary anatomy: Christopher Smith’s artistic approach to science - Communications Biology
In this Q&A, Christopher Smith, Postdoctoral Fellow at the American Museum of Natural History, discusses his journey from medical illustration to evolutionary anatomy, emphasizing how artistic ski...
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Christopher M. Smith @csmithevoanatomy.bsky.social · 07/04/2025
I'm excited to share that next fall, I'll be joining the faculty at Fairfield U as an Asst Prof in Biology! 🦌 I'm deeply grateful for my time at the AMNH and as part of the Bio Anth Lab. I look forward to continuing and expanding on these collaborations in this next chapter! 💀👂🧠
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The Anatomical Record @anatrecord.bsky.social · 07/04/2025
Check out this month's Editor's Choice author interview featuring @jordynneal.bsky.social and Dr. Allison Bronson: anatomypubs.onlinelibrary.wiley.com/hub/editors-... Read more about their exciting research on shark skeletal labyrinths here: anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
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Caley Orr @caleyorr.bsky.social · 01/04/2025
Our 3D scans of the ~2.0 million-year-old hominin pelvis (DNH 43) from Drimolen (Cradle of Humankind, South Africa) publicly available at this link. Species is most likely Paranthropus robustus. Please use scans & cite Berg et al (2025). #paleoanthropology 🏺🧪 human-fossil-record.org/index.php?/c...
Figure 1 from Berg et al (2025): Three-dimensional polygon models derived from surface scanning of DNH 43. A) sacrum (DNH 43A) with arrow indicating cranially-directed deformation of the left side of the sacral plateau; B) bisection and reflection of the relatively undistorted right side to reconstruct the left side; C) medial view of the two refit pieces of the os coxae (DNH 43B); D) anterior view of the articulated pelvis with the reconstructed sacrum and the right os coxae reflected to reproduce the left side; E) superior view of the articulated pelvis; F) lateral view of the articulated pelvis.
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Caley Orr @caleyorr.bsky.social · 27/03/2025
New paper from my lab & Drimolen team (@ozarchaeomaglab.bsky.social) on the DNH 43 hominin pelvis. I first saw it in 2019. Given the importance of the pelvis in the evolution of human locomotion and birth, I was surprised only a basic description had been published. 1/ #paleoanthropology 🏺🧪
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Christopher M. Smith @csmithevoanatomy.bsky.social · 20/03/2025
Excellent opportunity for any students interested in ear evolution! 👇👇
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Jordan Crowell @crowelljw.bsky.social · 13/03/2025
New paper is out! We used microCT to reanalyze the partial cranium of Plesiolestes nacimienti - the oldest plesiadapiform cranium currently known! @purgatoriidae.bsky.social nam12.safelinks.protection.outlook.com?url=https%3A...
nam12.safelinks.protection.outlook.com
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Dr. Mary T. Silcox @marytsilcox.bsky.social · 11/03/2025
New paper co-led by Maddy Lang and myself, providing the most comprehensive analysis of the evolution of olfactory bulb size in living and fossil euarchontoglirans. anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
anatomypubs.onlinelibrary.wiley.com
But how does it smell? An investigation of olfactory bulb size among living and fossil primates and other euarchontoglirans
Analysis of cranial endocast data of 181 extant and 41 fossil species from Euarchontoglires shows that there was a reduction in olfactory bulb size in Crown Primates, but that there were also subsequ...
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Christopher M. Smith @csmithevoanatomy.bsky.social · 21/02/2025
Fascinating new research from @a-urciuoli.bsky.social using the inner ear to dig deep into Neanderthal evolution. Check it out!!
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Caley Orr @caleyorr.bsky.social · 24/01/2025
An open-access collection of early fossil hominin scans from Swartkrans, South Africa was recently published in the journal PaleoAnthropology by Skinner et al. Both Paranthropus robustus & early Homo are represented in the assemblage. paleoanthropology.org/ojs/index.ph... 🏺🧪🦣 #paleoanthropology
Image from Skinner et al (2025) showing the SK 46 fossil specimen (a cranium typically attributed to Paranthropus robustus) from Swartkrans, South Africa. The specimen is depicted in sagittal section from the microCT image (top right) and as surface renderings of the cranium in anterior view (top left), lateral view (bottom left), and inferior view (bottom right).
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Griffin Lab @griffinlabpaleo.bsky.social · 15/01/2025
New paper alert! Kimi_Chapelle, lab PI Chris Griffin, and Diego Pol try our best to review everything we know about dinosaur ontogeny and reproduction in under 2k words in an invited contribution to Biology Letters royalsocietypublishing.org/doi/10.1098/...
royalsocietypublishing.org
Growing with dinosaurs: a review of dinosaur reproduction and ontogeny | Biology Letters
Since the start of the twenty-first century, there has been a notable increase in annual publications focusing on dinosaur reproduction and ontogeny with researchers using these data to address a rang...
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Christopher M. Smith @csmithevoanatomy.bsky.social · 13/01/2025
🚨 ICYMI: We've launched 6k+ 3D skeletal scans of primates, freely accessible! Led by my AMNH mentor, Sergio Almécija, it's a game-changer for biology, anthropology, & conservation research. nature.com/articles/s41...
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Dr. Headbutt 🌈🧪 @nicoleackermans.com · 07/01/2025
NEW PUBLICATION ALERT! I started writing this paper in 2020 and it's come a long way since. We went in trying to figure out why braincases in headbutting animals looked bumpy, we found... 🧪 🧠 👩‍🔬 #SICB2025
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Ryan N. Felice @rnf.bsky.social · 21/12/2024
turns out you can do some pretty cool stuff with the power of diceCT, SPROUT (www.biorxiv.org/content/10.1...), and the SmARTR pipeline (www.sciencedirect.com/science/arti...)
a 3d rendering of the skull and cranial muscles of the Eurasian oystercatcher (Haematopus ostralegus)
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Caley Orr @caleyorr.bsky.social · 18/12/2024
Our new paper announcing a freely available database of 3D scans of primate skeletal material--a major effort led by Sergio Almécija & his team at the American Museum of Natural History. 🧪 🏺 #paleosky #anatomy #primates #anthropology #morphology #zoology #paleoanthropology #openscience
nature.com
Primate Phenotypes: A Multi-Institution Collection of 3D Morphological Data Housed in MorphoSource - Scientific Data
Scientific Data - Primate Phenotypes: A Multi-Institution Collection of 3D Morphological Data Housed in MorphoSource
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Christopher M. Smith @csmithevoanatomy.bsky.social · 14/12/2024
The human evolutionary story is full of oddities. The Paranthropus group is particularly fascinating. Today, we present new insights into their inner ear indicating that one species -Paranthropus robustus- may have indeed been doing something different! 1/4🧵 authors.elsevier.com/a/1kGFIAlZXX...
Inner ear anatomy of Paranthropus robustus compared to modern humans.
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Zoe Kulik @paleozoek.bsky.social · 05/12/2024
Happy #ThinSectionThursday Here is a side by side comparison of virtual histology from synchrotron tomography on the left and “traditional” histology from optical microscopy on the right. It’s sometimes hard to tell what’s a growth mark in virtual histology but with this, we can can train our 👀
The left image is a grey value CT scan of a fossil bone thin section. The right image is the same fossil bone viewed under cross-polarized light microscopy with brightly colored pink, purple, blue, and yellow colors indicating bone mineral fiber orientations. The inside of the bone’s marrow cavity is infilled with brown crystals that look like a geode.
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Christian Mosimann @chrmosimann.bsky.social · 05/12/2024
Where did our neck muscles come from?🧪 Here's our #evodevo #devbio deep dive feat. #zebrafish, mouse, axolotls, & more! Led by Eglantine Heude & Tajbakhsh lab at Pasteur, the team at National Museum of Natural History France, & lab alumni Karin Prummel & Rob Lalonde. www.nature.com/articles/s41...
nature.com
Co-option of neck muscles supported the vertebrate water-to-land transition - Nature Communications
The evolutionary water-to-land transition involved the separation of the skull from the pectoral girdle, though these musculoskeletal changes have not been deeply characterised. Here they show that th...
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Professor Anjali Goswami FRS @evoswami.bsky.social · 24/11/2024
New paper! For all of you working with 3d scans (e.g. micro-CT, MRI), check out SPROUT, a rapid open-source tool for generating segmented and parcellated data, meaning your scans are separated into the individual elements without any manual labelling or training. www.biorxiv.org/content/10.1...
Figure showing diverse datasets analysed with SPROUT, including a skink skeleton, aardvark skull, human heart, concrete block, and foraminifera.
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Christopher M. Smith @csmithevoanatomy.bsky.social · 03/12/2024
Thank you Dr. @claudiakrebs.bsky.social and Dr. Segun Oyedele for the wonderful opportunity to chat about the intersection of art and science/anatomy! Check out their BodyBanter podcast here!: bodybanter.ca
bodybanter.ca
Body Banter Podcasts
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Claudia Krebs @claudiakrebs.bsky.social · 21/11/2024
New podcast on Body Banter: The intersection of Art and Science with Chris Smith bodybanter.ca
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Kevin Hatala @kevinhatala.bsky.social · 28/11/2024
Excited to share our latest paper, new in Science! www.science.org/doi/10.1126/...
science.org
Footprint evidence for locomotor diversity and shared habitats among early Pleistocene hominins
For much of the Pliocene and Pleistocene, multiple hominin species coexisted in the same regions of eastern and southern Africa. Due to the limitations of the skeletal fossil record, questions regardi...
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Christopher M. Smith @csmithevoanatomy.bsky.social · 20/11/2024
Congrats to @armanafzadeh.bsky.social et al. on a fascinating study giving us new perspectives into theropod locomotor evolution!
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Armita R. Manafzadeh @armanafzadeh.bsky.social · 18/11/2024
Our lesson plan from the Resources for Inclusive Evolution Education working group is now online! Collab w/ US, UK, Pakistan, Nigeria. If you want to lead a classroom discussion about genotype-phenotype associations + their intersection w/ societal issues: qubeshub.org/publications...
qubeshub.org
Genotype-phenotype associations: What are they, and how are they related to broader society?
In this lesson, students will explore contexts in which a single genotype does not directly yield a single phenotype (polygenic traits and gene x environment interactions). Students will reflect on ho...
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WitmerLab at Ohio University @witmerlab.bsky.social · 30/10/2024
Happy #Croctober! Glad to be a part of this #OA article led by @drmarkyoung.bsky.social, Julia Schwab, and Steve Brusatte on evolution of one my favorite anatomical systems—air sinuses—in extinct marine thalattosuchian crocs! 🐊 Funding: @LeverhulmeTrust, @NSF, & others. doi.org/10.1098/rsos...
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Christopher M. Smith @csmithevoanatomy.bsky.social · 15/11/2024
The best work from home buddy ❤️
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