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Posts by Rémi Lefebvre

It was a great honor and an adventure to work together with @camillebader.bsky.social on this unique Deinotherium limb bone. The analysis helped us better understand how the inner structure of this giant’s bones adapted to its enormous size. (Art: Tibor Pecsics - @griffworkshop5)

4 days ago 18 8 0 1
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Bone microanatomy and weight-bearing adaptations in the giant proboscidean Deinotherium giganteum (Kaup, 1829) Bone anatomy reflects the mechanical and functional constraints to which the skeleton is subjected. In graviportal taxa, the primary constraint is gravity, requiring specific adaptations in bone struc...

New paper out in Geodiversitas! 🦣🦴
Ever wonder what the inside of Deinotherium giganteum looks like? Find out about it here:
geodiversitas.com/48/7
Big thanks to the Budapest HNHM for providing access to this unique material! With Prof. Mihaly Gasparik & @segesdimartin.bsky.social

5 days ago 8 7 0 2
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Nyakatura-Lab for Comparative Zoology | News See what’s been happening in the Nyakatura Lab. News: discover our latest publications, recent events, and research highlights.

2 PhD Opportunities! 🤩
We are recruiting two highly motivated PhD students to join an ambitious project advancing Robotic Paleontology—a rapidly emerging field that fuses paleontology, biomechanics, simulation, and robotics.

nyakaturalab.com/news/

Please share!!

1 week ago 13 21 0 0
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Was great to see our old friend Patagotitan juxtaposed with the awesome Norman architecture of Peterborough Cathedral at the grand opening of the Titanosaur exhibition last night

1 week ago 54 7 3 1
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a small white bird is standing on one leg on a beach . ALT: a small white bird is standing on one leg on a beach .

🚨 Job alert!
#PhD in #Biomechanics × #Neuroscience to study birdsong 🎵🐤 @mecadev.bsky.social and @neuropsi.bsky.social

We are pre-selecting a candidate by April 15 to compete to InLife & IPV 2026 doctoral program (interview: May 20)

🔗 Full offer: sites.google.com/site/pauline...

Please share!

3 weeks ago 10 14 1 2
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Pangolins possess a spectacular, dense network of diploic veins for brain drainage!

In our latest study, we show that this pattern may also provide rare morphological evidence linking pangolins and carnivorans in the Ferae clade.

Check it out here: academic.oup.com/zoolinnean/a...

1 week ago 24 17 0 1

Comment les dinosaures sauropodes sont-ils devenus quadrupèdes ?
en lien avec le dernier article de @rl-evobio.bsky.social

2 weeks ago 4 2 0 0
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New #GRAVIBONE paper from @rl-evobio.bsky.social showing how partial long bone analyses in 3DGM reveal a hidden modularity in the evolution of the sauropod bauplan from their bipedal cousins, with L. Partout & H. Mallison.
onlinelibrary.wiley.com/doi/abs/10.1...

3 weeks ago 14 7 0 1
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Master of Research (MRes) - Master of Research (MRes) - Postgraduate - Study - Royal Veterinary College, RVC RVC's MRes enables students to undertake a sizeable research project and gain advanced research skills, without committing to completing a PhD. The course equips graduates with the skills needed to enter a PhD programme or move on to careers where advanced research experience is relevant.

1-year MRes projects at the RVC are open for application! I've got 2; 1 on combining experimental data with musculoskeletal simulations to understand how broiler chickens walk while growing, & 1 #DAWNDINOS choice of fossil critters to simulate:
www.rvc.ac.uk/study/postgr...

3 weeks ago 5 8 0 0
Job Vacancy at the University of Nottingham: Research Fellow (Mesozoic Palaeobotany & ecophysiology) (Fixed term) Applications are invited for a Research Fellow to join the University of Nottingham at the Sutton Bonington Campus working as part of a team to deliver a project awarded by Leverhulme Trust to understand plant performance and climate feedback...

A Postdoctoral Research Fellowship on Mesozoic #Paleobotany and Ecophysiology is available at the University of Nottingham with Barry Lomax. jobs.nottingham.ac.uk/vacancy.aspx...

3 weeks ago 9 16 0 0
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Vous voulez faire une thèse sur l'évolution de la tête des squamates au Muséum national d'Histoire naturelle?
C'est par ici: adum.fr/as/ed/voirpr...

Interested in a PhD on the evolution of the head shape of squamates at the Museum of Natural History of Paris?
Here you go:
adum.fr/as/ed/voirpr...

4 weeks ago 27 22 0 0
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Data on the postcranial skeleton of hippos are rare. So I am glad to announce this new paper on the postcranial anatomy of Miocene hippopotamoids, led by Lorenzo Scribano @isemevol.bsky.social, with F. Lihoreau, C. Nekoulnang Djetounako and J-R. Boisserie.
onlinelibrary.wiley.com/doi/epdf/10....

1 month ago 10 6 0 1
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Glad to see published a new #GRAVIBONE paper, which is the first paper from @clementine-tetaert.bsky.social, co-1st with @camillebader.bsky.social, and with Charlene Verbeke, on ankle bone adaptation to heavy weight in proboscideans. Congrats!! Well done!
onlinelibrary.wiley.com/doi/epdf/10....

1 month ago 13 8 0 2
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At the RVC we are grieving the death of the Structure & Motion Lab's creator, and stalwart comrade, Professor Alan Wilson FRS, from a plane crash in Namibia on Wednesday. He was a giant in comparative biomechanics and an amazing scientist. I'm still reeling. It is utterly shocking and deeply sad.

1 month ago 56 14 9 7
An historic black and white illustration of a paper nautilus floating on the ocean. There are boats, a city and hills in the background.

An historic black and white illustration of a paper nautilus floating on the ocean. There are boats, a city and hills in the background.

🎉 Huge news for BHL: The Field Museum is taking over the hosting of BHL’s website, servers & infrastructure, ensuring long-term stability and access for its 63+ million pages of open biodiversity literature. Learn more:
blog.biodiversitylibrary.org/2026/02/tran...
#BHLTransition #ILoveBHL 🌍 📚 🧪

1 month ago 372 150 8 31
Une nouvelle espèce nommée en hommage à Charles Aznavour | Jurassica Museum Une équipe de chercheurs de JURASSICA (Porrentruy, Suisse) annonce la découverte d’une nouvelle espèce de daman fossile en Arménie. Cette trouvaille exceptionnelle a été rendue possible grâce à une collaboration sur le terrain avec l’Institut des Sciences Géologiques de l’Académie nationale des sciences d’Arménie. Elle permet de mieux comprendre à quoi ressemblait ce mammifère énigmatique il y a plus de 3 millions d’années, et comment certains mammifères ont voyagé entre l’Afrique et l’Eurasie au cours de l’histoire. Cette nouvelle espèce a été baptisée Armenohyrax aznavouriani en hommage au chanteur et ambassadeur d’origine arménienne Charles Aznavour, symbole du lien culturel entre l’Arménie, la francophonie et la Suisse, où il a vécu. Ce choix souligne également l’esprit de coopération internationale à l’origine de la découverte.

Un nouvel hyrax dans le Pliocène d'Arménie découverts par des collègues du Jurassica 👏

www.jurassica.ch/fr/Infos-pra...

1 month ago 5 1 0 1
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A new genus and species of Pliohyracidae (Hyracoidea, Mammalia) from the Pliocene of Jradzor, Armenia Hyracoidea is a group of afrotheres that is today represented by three extant genera, but its fossil diversity is much greater. While most recent palaeontological studies have focused on documenting t...

Welcome Armenohyrax aznavouriani! Thrilled that our latest study is out sjp.pensoft.net/article/1813... We described this new species & did the first phylogenetic analysis of pliohyracids! Thanks to my co-authors who gave me the opportunity to work on this exciting study when I was at JURASSICA!

1 month ago 1 2 0 0

🦕I am extremely grateful to my colleagues and The Jurassic Foundation for making this project possible, which has marked a milestone in our knowledge of European titanosaurs and which we are convinced is on its way to becoming a reference work in the field.

2 months ago 14 6 0 0
JOB ALERT!

Lecturer in Biological Sciences

Come and join us in the world class Life Sciences Building at the University of Bristol!

Closing date: Sunday 8 March

JOB ALERT! Lecturer in Biological Sciences Come and join us in the world class Life Sciences Building at the University of Bristol! Closing date: Sunday 8 March

JOB ALERT!

Lecturer in Biological Sciences

Interested in our research areas? Click the link in our bio to discover more!

Closing date: Sunday 8 March

JOB ALERT! Lecturer in Biological Sciences Interested in our research areas? Click the link in our bio to discover more! Closing date: Sunday 8 March

JOB ALERT!

We are excited to announce that we are recruiting three new academics at lecturer level!

Click the link below for more info on how to apply, and don’t forget to explore our research themes too!

We look forward to receiving your applications!

www.bristol.ac.uk/jobs/find/de...

2 months ago 54 74 0 7
A book on a cushion held open with a weighted rope, with handwriting on the right hand page.

A book on a cushion held open with a weighted rope, with handwriting on the right hand page.

Happy bday Charles Darwin (born #OTD 1809)! 🎉 Check out Charles Darwin’s Library on #BHLib, a virtual reconstruction of the surviving books owned by Darwin, drawing on original copies & surrogates, providing full transcriptions of his annotations & marks: www.biodiversitylibrary.org/collection/d...

2 months ago 21 6 0 0
Collection Scientist and Curator (m/f/d) A13/14 100% - Eberhard Karls Universität Tübingen - job portal | jobs.myScience

🚨Job alert🚨
Curator in the Zoological Collections in Tübingen, Germany
www.myscience.ch/jobs/id69219...

2 months ago 1 3 0 0
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Job Opportunity at the RVC: Lecturer / Senior Lecturer in Biomedical Sciences We have an exciting opening for up to two academics at Lecturer or Senior Lecturer level to join the Department of Comparative Biomedical Sciences at our Camden campus.  The posts are suitable for res...

2 RVC faculty jobs are advertised now!
Lecturer / Senior Lecturer in Biomedical Sciences
Comparative Biomedical Sciences Department
Location: Camden (King's Cross, London)
Very broad search in the CBS department's remit
jobs.rvc.ac.uk/Vacancy.aspx...
EDI-friendly

2 months ago 0 6 0 0
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Habitat and complex life cycles promote morphological diversity in salamander limb bones We examined the external shape and cross-sectional morphology of limb bones in 133 salamander species spanning the ecological and phylogenetic breadth of Caudata. We find that adaptations for aquatic...

Second PhD paper is out! We find: 1) aquatic and terrestrial salamanders have different limb bone adaptations, 2) complex life cycles promote different traits, 3) decoupling of external and internal bone traits increase diversity.

Thread (1/8) and FREE link below! 🦎🧪

doi.org/10.1111/joa....

2 months ago 89 40 4 1
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a close up of a green and white sponge with purple spots Alt: A green and white sea sheep grazes on a green lawn of algae on a surface underwater.

This is the "SEA SHEEP" (Costasiella kuroshimae) & it took the old axiom: "you are what you eat" VERY literally.

It eats algae & rather than just digest them, it harvests the chloroplasts & becomes PHOTOSYNTHETIC. Solar slug!

Also, some of its cousins can rip their own heads off.

3 months ago 710 235 14 36
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Time to publish responsibly: DAFNEE, a database of academia-friendly journals in ecology and evolutionary biology Abstract. The current economics of scientific publishing reveal a profound imbalance: academia pays prices far exceeding the actual costs of publication. R

DAFNEE, a useful database of academic-friendly journals in #Ecology and Evolutionary #Biology

academic.oup.com/jeb/advance-...

4 months ago 29 20 0 0
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Help Give BHL Wings This Giving Tuesday On 1 January 2026, the Biodiversity Heritage Library (BHL) will take flight, becoming fully independent after nearly two decades hosted by the Smithsonian Institution. This transition marks an hist…

On 1 January 2026, the Biodiversity Heritage Library will take flight, becoming fully independent after nearly two decades hosted by the Smithsonian Institution. Learn more on the #BHLBlog: blog.biodiversitylibrary.org/2025/12/give... #GiveBHLWings #BHLTransition #GivingTuesday

4 months ago 10 9 0 0

Please consider supporting Biodiveristy Heritage Library, which preserves so many key historical publications you can't find anywhere else online!

4 months ago 13 5 0 0
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Hindlimb functional morphology and locomotor biomechanics of the small Late Triassic pseudosuchian reptile Gracilisuchus stipanicicorum (Archosauria: Gracilisuchidae) A three-dimensional biomechanical model of the musculoskeletal system is used to analyse the potential locomotor functions of the small (~1 kg) Late Triassic archosaurian reptile Gracilisuchus stipan...

#DAWNDINOS paper! We built a 3D musculoskeletal model of ~1 kg Triassic pseudosuchian archosaur Gracilisuchus. Forelimbs were a challenge. Nice articulations of ribs, vertebrae & osteoderms made a good torso & neck. Probably quadrupedal, plantigrade & not fully erect limbs. doi.org/10.1111/joa....

5 months ago 18 7 1 0
Philippe Taquet, paléontologue français

Philippe Taquet, paléontologue français

⚠️ Sad news for science: Philippe Taquet, the gentleman of French paleontology, passed away on Sunday, November 16.
@cr2p.bsky.social @mnhn.fr @recherche.mnhn.fr @academiesciences.bsky.social

5 months ago 9 3 1 2
Le beurre, l’argent du beurre et le c*l des chercheurs- La chronique de Tania Louis dans La dernière
Le beurre, l’argent du beurre et le c*l des chercheurs- La chronique de Tania Louis dans La dernière YouTube video by Radio Nova

De mon côté on m'a confié le micro pour la chronique sciences.

Cette fois j'ai décidé de parler du fonctionnement scandaleux de l'édition scientifique, peu connu en dehors des labos : www.youtube.com/watch?v=Yg2C...

Mais 4 minutes c'est court, alors j'ajoute quelques ressources ci-dessous !

5 months ago 56 22 2 3