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Thomas R. Holtz, Jr. @arctomet.bsky.social · 24/09/2026

PeerJ Let them fight: using finite element analysis to determine combative evolutionary drivers of ceratopsian (Dinosauria: Ornithischia) horns peerj.com/articles/217... @peerj.bsky.social

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Anthony Barnhart @magictony.bsky.social · 25/09/2026

An article I handled as editor has been published today @peerj.bsky.social. peerj.com/articles/21742 Have a look at this new contribution to the science of magic literature from @richardwiseman.bsky.social. #Neuroscience #Psychology

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Kenneth De Baets @djbirddanerd.bsky.social · 29/09/2026

Reassessment of #Miocene putative #coprolites from Poland suggests a biogenic origin and probable #squamate (reptilian) producers: peerj.com/articles/217... @peerj.bsky.social supported by size/morphology, surface striations, hair-like inclusions and associated putative reptile remains #paleobiology

Six Miocene coprolite fossils (A–F) shown alongside modern reptile faeces (G–L) for comparison. The fossils are irregular, flattened, dark-brown masses; specimen C has a distinctive striated surface texture. The modern samples come from an iguana, a Madagascar boa, a boa snake, and a tortoise, appearing as similar brownish, segmented or lumpy droppings. Panels M and N are microscope photos of hair-like structures inside specimen A, each marked with a yellow line showing the thin-section cut. Scale bars: 1 cm for the specimens, 100 µm for the microscope views. See: https://doi.org/10.7717/peerj.21755/fig-2

A grid of small vertebrate fossils from Bełchatów, Poland (scale bars 1 mm). Highlighted putative reptile finds: A, a possible reptile tooth crown shown from two sides; B, a crocodile tooth, slender and pointed; G, a rounded osteoderm (bony skin plate) in dorsal and ventral view; and N, a putative squamate bone fragment shown in three orientations. The remaining panels show mammal and amphibian remains: bat and hedgehog teeth, a possible frog bone, rodent incisors, and numerous mole and shrew-like insectivore teeth (Desmanella, Plesiosorex, Talpinae, Plesiodimylinae), plus a lagomorph tooth and a desman molar. Scale bars: 1 mm. 10.7717/peerj.21755/fig-3

Thin-section and electron microscope images of probable coprolites from Bełchatów, Poland. A and B show entire thin sections of two coprolites — pale, elongate slices with darker internal material. C and D are optical microscope views of the coprolite matrix; E and F are backscattered electron images of the same, showing scattered pale inclusions in a darker groundmass. G, H, and I are SEM close-ups revealing clusters of siderite and iron oxides/hydroxides — granular, bright mineral aggregates labelled "Sd" and "FeO(OH)" — in the coprolite matrix. https://doi.org/10.7717/peerj.21755/fig-5

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7th World Conference on Marine Biodiversity @wcmb2026.bsky.social · 16h

🌊 Sponsor spotlight: PeerJ We thank @peerj.bsky.social for publishing a Conference Collection of articles based on the themes and the research presented at #WCMB2026 wcmb2026.org/sponsors-pre... @unoceandecade.bsky.social @vliz.be

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Thomas R. Holtz, Jr. @arctomet.bsky.social · 23/09/2026

PeerJ Specimen-level phylogenetic analysis and taxonomic revision of North American metoposaurids: a case for monospecific genera in vertebrate paleontology peerj.com/articles/217... @peerj.bsky.social

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PeerJ @peerj.bsky.social · 22/09/2026

Publish your Computer Science research with confidence. peerj.com/journals/com... #PeerJ #ComputerScience #OpenAccess

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PeerJ @peerj.bsky.social · 16/09/2026

Why you should choose PeerJ!

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Alan McElligott @amcell.bsky.social · 24/08/2026

An article I handled as editor has been published today @peerj.bsky.social - Higher shock index at presentation is associated with mortality in stray cats at an emergency medical center - peerj.com/articles/21657 #VeterinaryMedicine #AnimalDisease #AnimalWelfare

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PeerJ @peerj.bsky.social · 19/08/2026

Publish your Computer Science research with confidence - peerj.com/journals/com...

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Dmitry Karabanov @dmitrykarabanov.bsky.social · 03/08/2026

Our new article in PeerJ - A morphologically generalized Eurasian Pleuroxus aduncus species group (Cladocera: Chydoridae) is paraphyletic and contains denticulated P. truncatus, with an analog in the American Pleuroxus - peerj.com/articles/216... @peerj.bsky.social

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Thomas R. Holtz, Jr. @arctomet.bsky.social · 30/07/2026

PeerJ High fecundity in an early-diverging ichthyosaur with over ten fetuses peerj.com/articles/216... @peerj.bsky.social

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PeerJ @peerj.bsky.social · 24/07/2026

Join PeerJ as an Academic Editor! Current recruiting in; • Anesthesiology • Emergency Medicine • Sports Medicine • Nursing • Surgery + 8 more specialties Apply by Aug 31: think.taylorandfrancis.com/peerj-editor... #AcademicCareers #OpenScience

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GRICA-BIOpast @gricabiopastudc.bsky.social · 22/07/2026

Today published in @peerj.bsky.social: Byzantinia 🐭 #fossils from Lebanon shed new light on the #evolution and history of this #Miocene rodent. Congratulations🎉 to the authors! Our postdoc Blanca Moncunill-Solé handled this manuscript as Academic Editor. peerj.com/articles/21543 #Paleontology

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Thomas R. Holtz, Jr. @arctomet.bsky.social · 16/07/2026

PeerJ First forelimb reconstruction and range of motion assessment of the Late Cretaceous dinosaur Troodon formosus peerj.com/articles/209... @peerj.bsky.social

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Kenneth De Baets @djbirddanerd.bsky.social · 18/07/2026

The #whitefly puparia from Cretaceous #amber reveal early subfamily diversification @peerj.bsky.social peerj.com/articles/21463 #Biodiversity #Entomology #EvolutionaryStudies #Paleontology #Taxonomy #Fossils

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PeerJ @peerj.bsky.social · 20/07/2026

🩺 Internal Medicine scholars! Join PeerJ as an Academic Editor. Drive clinical research excellence. Deadline: Aug 31, 2026. #InternalMedicine #ClinicalResearch #MedTwitter Apply editorresources.taylorandfrancis.com/editor_recru...

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Alan McElligott @amcell.bsky.social · 03/07/2026

A recent study used covert observation to study tourists' fear of snakes, watching 968 people without their knowledge. The results are potentially interesting, but the ethical oversight of this research is very troubling. peerj.com/articles/214... via @peerj.bsky.social

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JJBioAcoustique @jjbioacoustique.bsky.social · 06/07/2026

Huge thanks to our sponsors for their support and prizes! During the gala, participants won: 🎓 A free publication in a PeerJ journal @peerj.bsky.social 🦇 2 Pipistrelle Mini + 2 Pippyg detectors from Apodemus 🎙️ A BAR-V2 recorder from Frontier Labs @frontierlabs.bsky.social 🦇 A Batlogger S2 detector

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Lene Liebe Delsett @leneliebedelsett.bsky.social · 07/07/2026

New publication from the ECHO project🥳My former MSc student Jørgen Krøglid did great work on rib microstructure in ichthyosaurs and toothed whales, and we learnt a lot from it. Turns out these animals differ quite a lot inside their ribs! With Mathieu Faure-Brac in PeerJ peerj.com/articles/214... 🧪

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Sanjeeta Sharma Pokharel @sanjeeta.bsky.social · 09/07/2026

Do you know that elephants' tail hair can be used as a 'stress calendar' to know what happened to them in the past? Resharing my old work: #AsianelephantScience peerj.com/articles/104... via @peerj.bsky.social

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PeerJ @peerj.bsky.social · 15/07/2026

PeerJ seeks Academic Editors in: • Anesthesiology • Emergency Medicine • Sports Medicine • Nursing • Surgery + 8 more specialties Apply by Aug 31: think.taylorandfrancis.com/peerj-editor... #AcademicCareers #OpenScience

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Thomas R. Holtz, Jr. @arctomet.bsky.social · 10/07/2026

PeerJ A new genus of giant salamander (Urodela, Cryptobranchidae) from the Pliocene of Japan peerj.com/articles/213... @peerj.bsky.social

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Thomas R. Holtz, Jr. @arctomet.bsky.social · 14/06/2026

PeerJ Megaherbivore coprolite DNA: yields and comparison of three ancient DNA extraction protocols on coprolites of giant ground sloth Mylodon darwinii peerj.com/articles/210... @peerj.bsky.social

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ISYEB @isyeb.mnhn.fr · 16/06/2026

New in @peerj.bsky.social 14, e21036.OpenAccess Behaviour-structure interplay drives acoustic signal divergence: emergence of multiple mechanisms in closely related crickets Gaiddon,T., Nattier,R., @fredlegendre.bsky.social @tonyrobillard.bsky.social , @isyeb.mnhn.fr et al. 🦗 doi.org/10.7717/peer...

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Menno Schilthuizen @schilthuizen.bsky.social · 10/06/2026

Nice study of the evolution of the male metatrochanter in mammal-burrow-inhabiting Choleva beetles published in @peerj.bsky.social: peerj.com/articles/212... Work by former MSc students Henk van der Meulen and Mike Groenhof, with added data from Alina von Thaden.

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Alan McElligott @amcell.bsky.social · 20/05/2026

Our new paper has been published today, "Sex and spatial proximity affect ungulate behavioral synchrony" peerj.com/articles/21331 via @peerj.bsky.social #AnimalBehaviour #Zoology led by @ghodgson.bsky.social

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George Hodgson @ghodgson.bsky.social · 20/05/2026

New paper alert!! Excited to announce our latest feral cattle paper ‘Sex and spatial proximity affect ungulate behavioral synchrony’ is out today open-access in PeerJ @peerj.bsky.social by myself, Kate Flay, @tania-perroux.bsky.social and @amcell.bsky.social (1/6) peerj.com/articles/213... #zoology

Photograph of two brown feral cattle in Hong Kong standing next to a path and staring at the camera

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Thomas R. Holtz, Jr. @arctomet.bsky.social · 27/05/2026

PeerJ 200 years of dinosaur discoveries –a visual portrayal of their geographic and historical origins peerj.com/articles/213... @peerj.bsky.social

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Alan McElligott @amcell.bsky.social · 28/05/2026

2026. Purr-ceiving feelings: domestic cats respond to intraspecific cues of emotion. peerj.com/articles/212... via @peerj.bsky.social

static.klipy.com

Cute Kitten Chin Scratches

ALT: Cute Kitten Chin Scratches

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Kenneth De Baets @djbirddanerd.bsky.social · 03/06/2026

A new genus of #giant #salamander (Urodela, Cryptobranchidae) from the #Pliocene of #Japan - peerj.com/articles/213... @peerj.bsky.social #Paleontology #Taxonomy #Zoology #Fossils #Herpetology

Holotype fossil specimen LBM0142000335 of the newly described species Limnospondylus ajimuensis, shown in five anatomical views.

The image displays a vertebral fossil in dorsal (top-down), lateral (side), ventral (bottom), anterior (front), and posterior (back) views. Panel F provides a close-up of the zygapophyseal articular surface alongside an interpretative line drawing. Panel G shows CT scan cross-sections from anterior and posterior sections.

Red arrows highlight three diagnostic features: (1) strongly laterally elongated prezygapophyses, (2) broadly expanded and robust prezygapophysis bases, and (3) nearly straight alignment of the left and right transverse process ventral margins. The lateral view image is horizontally flipped to display opposite-side morphology. Scale bar indicates 2 cm.

Abbreviations used: ac (anterior canal), aco (anterior cotyle), cf (central foramen), fap (facies articularis prezygapophysialis), na (neural arch), nc (neural canal), pco (posterior cotyle), psz (postzygapophysis), prz (prezygapophysis), tp (transverse process), zgr (zygapophyseal growth rings). https://doi.org/10.7717/peerj.21362/fig-2

Scatter plots displaying Principal Component 1 (PC1) and Principal Component 2 (PC2) scores derived from a geometric morphometric analysis of trunk vertebrae.

Panel (A) shows the analysis based on the left lateral view of the vertebrae, while Panel (B) displays results from the dorsal half view. The plot distinguishes three groups using specific markers: a red star represents the Ajimu specimen (Limnospondylus ajimuensis), circles represent the extant species Andrias japonicus, and triangles represent Cryptobranchus alleganiensis. The distribution of these points illustrates the morphological variation and clustering among the fossil and modern salamander taxa. https://doi.org/10.7717/peerj.21362/fig-5

Graph comparing the ratio of centrum length to centrum height across living and extinct cryptobranchid salamander species.

The chart plots CL/CH ratios for both extant (currently living) and fossil specimens of the cryptobranchid salamander family, allowing comparison of vertebral proportions between modern and ancient species. https://doi.org/10.7717/peerj.21362/fig-4

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Alan McElligott @amcell.bsky.social · 05/06/2026

2026. Is the walk and trot efficiency a hereditary trait in primitive Konik Polski horses peerj.com/articles/213... via @peerj.bsky.social

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Chris Mah @echinoblog.bsky.social · 18/03/2026

#wormwednesday NEMERTEAN DIVERSITY!

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PeerJ @peerj.bsky.social · 12/03/2026

PeerJ congratulates Emily Cook - winner of the PeerJ award at Arctic Frontiers 2026 Learn more about Emily’s research on the PeerJ blog peerj.com/blog/post/11...

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Natural History Museum of Los Angeles County @nhm.org · 24/01/2026

🐄 Holy (sea)cow! Published in the journal @peerj.bsky.social, an international team of paleontologists, including #NHMLA's Curator of Marine Mammals, Dr. Jorge Velez-Juarbe, identified the new species unearthed from an ancient dugong graveyard in Qatar: go.nhm.org/dugong

Fossils of Salwasiren qatarensis, a newly described 21-million-year-old ancient sea cow species found in Al Maszhabiya [AL mahz-HA-bee-yah], a fossil site in southwestern Qatar. ARC.2023.23.008, Qatar Museums, Doha, State of Qatar. Photo by James Di Loreto, Smithsonian.

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Andy Farke @andyfarke.bsky.social · 14/01/2026

"Prolonged growth and extended subadult development in the Tyrannosaurus rex species complex revealed by expanded histological sampling and statistical modeling" - new in @peerj.bsky.social, by @histo-holly.bsky.social et al.

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PeerJ @peerj.bsky.social · 15/01/2026

Inside the Life of Tyrannosaurus rex: PeerJ spoke with Dr. Holly Woodward Ballard on Growth and Development youtu.be/zlmeMc7P4gI Read the full article peerj.com/articles/204... #PeerJ #Trex #Paleontology

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Inside the Life of Tyrannosaurus rex: PeerJ & Dr. Holly Woodward Ballard on Growth and Development

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PeerJ @peerj.bsky.social · 09/01/2026

PeerJ has a brand-new website design! Easier to navigate and more user-friendly, it’s the ultimate destination for discovering groundbreaking research across disciplines. Dive into the future of academic publishing today: peerj.com/journals/pee... #OpenAccess #PeerJ #Science

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PeerJ @peerj.bsky.social · 09/01/2026

Exciting news - PeerJ Computer Science has unveiled a new design. Explore cutting-edge research with an improved, user-friendly design that makes finding and reading articles easier than ever. Check it out today! peerj.com/journals/com... #OpenAccess #ComputerScience #PeerJ

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Kenneth De Baets @djbirddanerd.bsky.social · 09/01/2026

A highly diverse Pennsylvanian #tetrapod ichnoassemblage from the Semily Formation (Krkonoše Piedmont Basin, Czechia) peerj.com/articles/204... @peerj.bsky.social #ichnology #paleontology #paleobiology

A series of blockdiagrams illustrating the development (from the phase 1 to phase 3) of the Ploužnice Lake as interpreted from the studied sections (Kyje–Ploužnice railway cut, Štikov roadcut) and data on the Ploužnice Horizon by Blecha et al. (1997). The alternation of wet and dry climate phases that controlled the extent of the Ploužnice Lake, has already been interpreted from contemporaneous deposits of the Líně Formation in central Bohemia (Nádaskay et al., 2025). Close-ups provide a detailed interpretation of the depositional environment in which the trackmakers roamed and left their trace fossils.

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Anthony (Tony) J. Martin @ichnologist.bsky.social · 09/01/2026

Fantastic assemblage of vertebrate trace fossils from the latest Carboniferous (~300-310 mya) showing abundant & diverse amphibians & reptiles (amniotes) in alluvial & lakeside environments, Czechia, reported in @peerj.bsky.social. 🧪🐾 #FossilFriday (ht @djbirddanerd.bsky.social)

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PeerJ @peerj.bsky.social · 09/01/2026

PeerJ has expanded its scope to reflect our commitment to putting researchers first and amplifying research impact. Submit to PeerJ today: peerj.com #ScholComm #PeerReview

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