The hidden pattern of the primary teeth in an ancestral ray-finned fish provides a clue to how the strange lungfish dentition could have evolved simply by modifying the growth mode of bone. More information in this newly published piece from @uuvertpalaeo.bsky.social here: doi.org/10.1111/joa....

Continuing our celebration of #fossilfriday, Maíllo and colleagues perform osteohistology of an ornithopod from Aliaga (Spain), finding it matured at ~7 years and died aged 9–12. This first use of the three-front model in an #ornithopod reveals strong bone-to-bone variability doi.org/10.1111/joa....

Also in this month's #specialissue and celebrating #fossilfriday 🦴 is this paper from Chinsamy and Valenciano identifying multiple exostoses and an osteochondroma in a Pliocene canid 🐕🦊 from Langebaanweg, South Africa doi.org/10.1111/joa....

Introducing our latest special issue, From Fossil to Microscope: Unraveling the Tapestry of Tissue Anatomy through Paleohistology, with this wonderful cover image from @funstonpaleo.bsky.social et al., of compacted coarse cancellous bone from the early Palaeocene taeniodont, Conoryctes comma.

📰 Cranial scans in South Africans revealed higher facial asymmetry in female and Black individuals, especially in nasal and temporal regions. These shape shifts may not skew IDs but should be considered in anthropological analyses of ancestry, health, and human variation 📰:

Also in this edition, Enriquez et al., found that epidermal scale shapes and relative scale sizes are mostly retained through growth in both dinosaurs and modern reptiles, suggesting that the enlarged 'feature scales' of some dinosaurs were not used in visual displays: doi.org/10.1111/joa....

🚨New issue alert 🚨 with a cover image from Cerda et al. showing dental plate histology of †Ischyodus dolloi, revealing dental plates packed with tritors; hypermineralised structures made of whitlockin, a form of dentine far stronger than the usual material found in teeth doi.org/10.1111/joa....

The Weberian apparatus boosts hearing in otophysan fish via modified bones and ligaments. Using advanced imaging and histology, a study from @jakeleyhr.bsky.social and @remorphevolab.bsky.social reveals new insights into the elusive first intercostal ligament and its role in this acoustic system

🦷 A common embryological, developmental, and genetic background is shared between dentine and cortical bone. @mathilde-augoyard.bsky.social and team found coordinated variation between their volumes in human limb bones and teeth, suggesting shared factors influencing their postnatal development 🦴

We welcome Volume 247 with this fantastic image from work by Sosa et al. This study provides the first comprehensive description of the hindlimb musculature of the #Emperor #Penguin (Aptenodytes forsteri) across different ontogenetic stages. doi.org/10.1111/joa....

🦭🔥Hot off the press! 🔥🦭 Check out this exciting work from @robyngrant.bsky.social and colleagues looking at the wonderful world of whiskers! #anatomy #comparative #whiskers

Our @journalofanatomy.bsky.social paper of the year is "Microanatomy of the human tunnel of Corti structures and cochlear partition-tonotopic variations and transcellular signaling" by Giese et al.

🥳New issue means new cover image🥳 Ochronotic #pigmentation is shown within the perichondrium surrounding hyaline #cartilage from the secondary #bronchus of an individual with #alkaptonuria. Hughes et al.'s investigation of alkaptonuria, available now: doi.org/10.1111/joa....

Our latest paper on fibulas 🦴 has finally a home in the @journalofanatomy.bsky.social! We studied trabecular architecture to check if it records arboreal habits 🌳 in #primates 🐒🦧🦍... (1/2) 🧪 #science 🏺 #BioAnth dx.doi.org/10.1111/joa....

Surface scans capture rotator cuff volume across hominoids; origin areas predict muscle size, paving the way for improved reconstructions. van Beesel, Melillo, and Vereecke's latest publication is now available in @journalofanatomy.bsky.social

Available 🎉 NOW 🎉 @KaratagOzan used CT to examine infraorbital canal (IOC) types & sinonasal variations. The authors measured IOC length, septum, dOI, Haller cells, sinus opacities, & dehiscence, showing that pre-op IOC imaging is key to avoiding iatrogenic injury doi.org/10.1111/joa....

Little data is available on the #muscle properties and architecture of bat flight muscles. @acsharp.bsky.social and colleagues show that the Egyptian fruit #bat pectoralis is optimised for power, and the elbow flexion/extension group is optimised for high forces with large PCSA and short fibres

This month sees a Special Issue of @journalofanatomy.bsky.social, with a specific focus on Biomedical Imaging in Comparative Anatomy. The cover image shows the wing muscles of the Egyptian fruit bat (Rousettus aegyptiacus), from @acsharp.bsky.social and colleagues, which is included in this issue.

New study from Cruz-Montecinos et al., used ultrasonography to examine sex-specific differences in rectus femoris muscle quality in children. The results showed distinct patterns in tissue composition, potentially reflecting intramuscular fat and connective tissue. doi.org/10.1111/joa....

@yohanpochatcot.bsky.social studied the variation of the morphology of the endosseous labyrinths of extant crocodiles & showed that its morphology is mainly related to the size of the specimen (allometry) and is probably due to changes in braincase conformation.

Also from @tissueengdublin.bsky.social, we see how matrix proteins including laminin-1, fibronectin, and collagen-IV enhance neural cell growth & drive changes at both the whole-cell and nanoscale levels. These insights can help inform the design of biomaterial scaffolds! 🧠🔬

Also this month, researchers @uniofnottingham.bsky.social studied the role of CDK13 in heart development. With high-resolution imaging (HREM), they found a range of CHDs in developing mouse hearts at E15.5, giving new insights into how this gene impacts heart formation. 🧬💖

The cover of volume 246, Issue 4 features this image from Szabó et al.,'s recent paper on chronic silencing of subsets of cortical layer 5 pyramidal neurons and their effect on parvalbumin interneurons and the perineuronal nets. It can be read here: onlinelibrary.wiley.com/toc/14697580...

Uterine contractions are key to #menstruation & #fertility. This study from @ABI_Bioeng shows #micro-CT can quantify musculature in the non-pregnant rat #uterus, offering insights into contractile activity & 3D virtual histology. doi.org/10.1111/joa....

👂For these articles, and to read further about the amazing anatomical adaptations exhibited in the ear and in sound production, follow the link here: onlinelibrary.wiley.com/toc/14697580... 👂

Cochlear analysis of Kekenodon onamata, a late Oligocene stem whale, suggests they specialised in low-frequency hearing, a trait of raptorial feeding in fossil whales. Low-frequency hearing may be characteristic of raptorial macrophagous fossil cetaceans @joshcorrie @Blogozoic

🦴 Ear region is a treasure trove for studying evolution! 🐐 The structure of the bony labyrinth shows that Eotragus species are stem Bovidae, while the newly discovered Pusillutragus montrealensis represents a more advanced form from @museumtoulouse and @mennecart_b

This month, we see the release of Special issue on Anatomical Variations in Hearing and Sound Production in Amniotes. Our cover is from Racicot et al., ‘Variation in whale (Cetacea) inner ear anatomy reveals the early evolution of ‘specialized’ high frequency hearing sensitivity’

🦕🚨New paper alert 🚨 @paleovidal.bsky.social and team found that sauropods have a variety of tail shapes, which may have influenced their functions beyond tail/neck balance. Distinct titanosaur tail shapes could have seen the tail used as a fifth limb in a potential pentapodal posture! 🦕

🦌 Back scattered electron imaging in SEM found winter rest lines forming in reindeer cementum when matrix deposition stops, but mineralization continues similarly to maturation in bone, with multiple tidemark lines akin to calcified articular cartilage🦌 doi.org/10.1111/joa....

🌟 New issue out now! 🌟with the cover image showing Simomylodon uccasamamensis! 🦥 Quiñones' study reveals insights into the morphology & growth of this #Pliocene #sloth from Argentina's Puna Plateau. onlinelibrary.wiley.com/toc/14697580...

How has climate shaped human cranial variation? 🌎 @lumilapm studied 2,633 individuals across Asia, North & South America and found cold climate leading to taller noses, larger faces and lower cranial vaults.👃😀🧠 #Climate is a relevant factor shaping modern human #morphology!

Happy New Year! 🎉 We're kicking off 2025 with Volume 246, Issue 1! Bringing more fascinating research, including a study on air sac morphology and skeletal pneumatization in African grey parrots 🦜which also stars on our cover. Check it out! 📖✨ @paleofox.bsky.social

New #crocpaper alert !🐊🚨 And just in time for Christmas ! We studied the variation of the morphology of the endosseous labyrinths (inner ears) of extant crocs. Published in @journalofanatomy.bsky.social today : doi.org/10.1111/joa.... Thread below:

Just in time for Christmas 🎄 New paper in @journalofanatomy.bsky.social Insights into #ochronosis in the #raredisease #alkaptonuria, made possible through the invaluable gift of body donation. Such a privilege working on this project! onlinelibrary.wiley.com/doi/full/10....

HAPPY HOLIDAYS! We’ll be back in the new year with more of the latest updates from the world of anatomical research! Thanks for a great 2024 - watch this space 😁

Sex-based shape differences in the scapula don't align with shape changes driven by allometry, suggesting that sexual dimorphism in scapular shape is not due to inherent differences in body size. Read the full study by @ErinCSLee and @RainbowBiomech here: doi.org/10.1111/joa....

Congratulations! Another exciting paper available to read in @journalofanatomy.bsky.social! Thanks for sharing

A recent study by @tito_aureliano et al. evaluated the changes in the skeleton of dinosaurs of the bird lineage. It detected a progressive increase in pneumatization from the ceratosaur lineage to the branch that includes raptors. Read more here: onlinelibrary.wiley.com/doi/10.1111/...

Progress in craniosynostosis research! AdCr meetings unite clinicians, researchers & families to tackle this condition. Latest Journal of Anatomy issue honours Prof. Gillian Morriss-Kay & features 10 interdisciplinary studies. doi.org/10.1111/joa.... #Craniosynostosis #AdCr

👋Hi new followers! 👋 At @JournalofAnat, we seek to advance the understanding of all aspects of human and comparative anatomy through the analysis of structure, function, development, and evolution. More about us, and submit your papers here: onlinelibrary.wiley.com/journal/1469...