#wormwednesday NEMERTEAN DIVERSITY!

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...

Differences in #extinction selectivity and their relationship to functional traits in late #Cenozoic #mollusks

peerj.com/articles/207...

@peerj.bsky.social

#Paleontology #Evolution #Conservation

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.

🐄 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

"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.

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

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

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

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

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.

A highly diverse Pennsylvanian #tetrapod ichnoassemblage from the Semily Formation (Krkonoše Piedmont Basin, Czechia)

peerj.com/articles/204...

@peerj.bsky.social #ichnology #paleontology #paleobiology

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)

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

PeerJ’s flagship journal now welcomes Chemistry, Materials Science, and select Engineering, alongside Biology, Medicine, and Environmental Sciences. Explore the refreshed site + submit: peerj.com #OpenAccess #OpenResearch

PeerJ Computer Science

How are topics born? Understanding the research dynamics preceding the emergence of new areas

peerj.com/articles/cs-...

@peerj.bsky.social

Fossils of a new sea cow species, Salwasiren qatarensis, were found in 21M-year-old rocks in SW Qatar, alongside extinct sharks, dolphins & turtles. Researchers at Smithsonian & Qatar Museums named it in PeerJ today.

Read more: peerj.com/articles/200...
Image credit: Alex Boersma

Resistance of cervical vertebrae in response to muscular stresses in pterosaurs: implications for foraging habits and skeletal pneumatization The necks of pterosaurs were flexible and provided mobility for a relatively long skull. The varied morphologies and levels of pneumatization of their cervical vertebrae reflected differences in biomechanical behavior. Here, we examined the structural resistance of the cervical vertebrae to infer the most advantageous movements during the foraging behaviors of two pterodactyloid pterosaurs. We also examined the relationship between vertebral resistance and the presence of pneumatic foramina on the bone cortex. For this purpose, we analyzed three-dimensional models of the cervical vertebrae of Anhanguera piscator and Azhdarcho lancicollis, which are hypothesized to be aquatic and terrestrial predators, respectively, and employed Finite Element Analysis (FEA) to assess and quantify the stresses experienced by the vertebrae due to the performance of six different movement scenarios. We observed that the shorter vertebrae at the ends of the neck of both species favored the proliferation of larger stresses in these regions, especially in the posterior cervicals of Anhanguera piscator and in the atlas-axis of Azhdarcho lancicollis, and that their taller neural arches aided in absorbing stress. Larger stresses at the ends of the neck are consistent with the interior trabecular reinforcement of the atlas-axis and posterior cervical vertebrae, suggesting a link between biomechanical behavior and the level of pneumatization. Additionally, mechanical requirements may have also influenced the presence, size, and number of pneumatic foramina on the vertebral cortex, as evidenced by the large lateral foramen in Anhanguera piscator and the smaller and more numerous ones bordering the neural canal in Azhdarcho lancicollis. Our inferences corroborate the differences in foraging strategies hypothesized for anhanguerids and azhdarchids. The absorption of stresses resulting from ventral pitching of the head and neck indicates that the cervical vertebrae were well-adapted for making rapid movements during predatory hunting. However, variations in the height of the neural spine indicate different mechanical behaviors between these species when raising the skull and neck, which could be faster in Anhanguera piscator while more vigorous in Azhdarcho lancicollis.

Resistance of cervical vertebrae in response to muscular stresses in pterosaurs: implications for foraging habits and skeletal pneumatization @peerj.bsky.social

My article has been published today in @peerj.bsky.social peerj.com/articles/20388 #Paleontology

Our recent paper in @peerj.bsky.social shows the gradual improvement in bear habitat connectivity due to land use change in the #Carpathians. We found also that up to 40% of the current corridor was stable since mid-19th century.

peerj.com/articles/202...

🎉 New publication! 🐻
I’m happy to announce our new paper on land use change and #BrownBear habitat connectivity in the Polish Carpathians recently published in #PeerJ! 📚
@peerj.bsky.social ⬇️
@jagiellonskiuni.bsky.social

➡️https://peerj.com/articles/20295/

#UJ #Carpathians #Science #Research

Total number (1758–2024) of etymologies. Etymologies are displayed by category as both raw counts and relative percentages of the overall dataset. https://doi.org/10.7717/peerj.20337/fig-1

Temporal variations in the relative proportion of etymologies. A generalised additive model was applied, showing the predicted trend and 95% confidence interval. https://doi.org/10.7717/peerj.20337/fig-2

Decoding the bare necessities of decapod crustacean nomenclature through the ages

peerj.com/articles/203...

@peerj.bsky.social

It's out, Minos transgenesis in the pantry moth by
@donyaniyaz.bsky.social
@lucalivraghi.bsky.social

High efficient, glowing eye and silk gland markers

peerj.com/articles/202...
@peerj.bsky.social

PeerJ Congratulates Abdelkader Haddag - winner of the Early Career Researcher best presentation award & Carlos Cano - winner of the Best poster award at IWANN 2025

Learn more about their research on the PeerJ blog peerj.com/blog/post/11...

2025.
Effectiveness of seed dispersal by foxes in areas with different human disturbances in southern Chile

peerj.com/articles/201...

@peerj.bsky.social

🚨 New paper published in @peerj.bsky.social by Profs Tim Ryan, Joan Richtsmeier, and colleagues! Give it a look! 🔗 peerj.com/articles/201...

DNA metabarcoding of mites from small soil samples: limited agreement with morphological identifications but improved results from long-read sequencing

peerj.com/articles/202...

@peerj.bsky.social

Easier said than done: unexpected hurdles to preparing ∼1,000 cranial CT scans for data collection from an online digital repository

peerj.com/articles/201...

#ComputedTomography #DigitalRepositories #Anthropology #Paleontology #Bioinformatics @peerj.bsky.social

📢New paper out!

💩🧬🧪Our Methods article about how preservation methods impact on genotyping success of feces is now published in @peerj.bsky.social peerj.com/articles/20154 #Biodiversity #ConservationBiology #Ecology #Genetics #Genomics #wolfConsevol
@consevol.bsky.social @ebdonana.bsky.social

🧵👇

Gonzalo Salazar has his first thesis paper published today in @peerj.bsky.social

We show that the invert taxa of the very understudied salares of the Lithium Triangle differ greatly between sites and will need assessing individually

peerj.com/articles/20042

PeerJ

Aquatic sloths (Thalassocnus) from the Miocene of Chile and the evolution of marine mammal herbivory in the Pacific Ocean @peerj.bsky.social peerj.com/articles/198...