![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.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:v4dpm7icom54y366e76xy3mj/bafkreig3ebbljsmbfpk3nmmzmjz4veall3tul4cgbuaqmpsxlswe5przie@jpeg)
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.
π 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
24.01.2026 00:21 β π 24 π 3 π¬ 0 π 0
"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.
14.01.2026 14:05 β π 6 π 2 π¬ 0 π 0
YouTube video by PeerJ
Inside the Life of Tyrannosaurus rex: PeerJ & Dr. Holly Woodward Ballard on Growth and Development
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
15.01.2026 09:19 β π 0 π 0 π¬ 0 π 0
PeerJ has a brand-new website design! Easier to navigate and more user-friendly, itβs the ultimate destination for discovering groundbreaking research across disciplines.
Dive into the future of academic publishing today: peerj.com/journals/pee...
#OpenAccess #PeerJ #Science
09.01.2026 15:33 β π 0 π 0 π¬ 0 π 0
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
09.01.2026 15:30 β π 0 π 0 π¬ 0 π 0
A series of blockdiagrams illustrating the development (from the phase 1 to phase 3) of the PlouΕΎnice Lake as interpreted from the studied sections (KyjeβPlouΕΎnice railway cut, Ε tikov roadcut) and data on the PlouΕΎnice Horizon by Blecha et al. (1997). The alternation of wet and dry climate phases that controlled the extent of the PlouΕΎnice Lake, has already been interpreted from contemporaneous deposits of the LΓnΔ Formation in central Bohemia (NΓ‘daskay 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 (KrkonoΕ‘e Piedmont Basin, Czechia)
peerj.com/articles/204...
@peerj.bsky.social #ichnology #paleontology #paleobiology
09.01.2026 08:17 β π 4 π 2 π¬ 0 π 2
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. π§ͺπΎ #FossilFriday (ht @djbirddanerd.bsky.social)
09.01.2026 12:50 β π 9 π 1 π¬ 0 π 0
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
09.01.2026 12:58 β π 0 π 0 π¬ 0 π 0
PeerJβs 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
07.01.2026 14:03 β π 0 π 1 π¬ 0 π 0
PeerJ Computer Science
How are topics born? Understanding the research dynamics preceding the emergence of new areas
peerj.com/articles/cs-...
@peerj.bsky.social
15.12.2025 10:13 β π 3 π 1 π¬ 1 π 0
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
11.12.2025 14:47 β π 1 π 1 π¬ 0 π 1
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
25.11.2025 10:15 β π 1 π 1 π¬ 0 π 0
π New publication! π»
Iβm happy to announce our new paper on land use change and #BrownBear habitat connectivity in the Polish Carpathians recently published in #PeerJ! π
@peerj.bsky.social β¬οΈ
@jagiellonskiuni.bsky.social
β‘οΈhttps://peerj.com/articles/20295/
#UJ #Carpathians #Science #Research
12.11.2025 10:54 β π 1 π 2 π¬ 0 π 0
Total number (1758β2024) 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
12.11.2025 12:21 β π 4 π 1 π¬ 1 π 0
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
12.11.2025 14:40 β π 46 π 16 π¬ 4 π 4
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...
10.11.2025 17:05 β π 0 π 0 π¬ 0 π 0
π¨ New paper published in @peerj.bsky.social by Profs Tim Ryan, Joan Richtsmeier, and colleagues! Give it a look! π peerj.com/articles/201...
23.10.2025 14:46 β π 1 π 2 π¬ 0 π 0
Impact of two field preservation methods on genotyping success of feces
Non-invasive samples, such as feces, remain an important source of DNA for genetic analyses in molecular ecology and conservation genetics, especially when working with elusive or endangered species. ...
π’New paper out!
π©π§¬π§ͺOur 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
π§΅π
09.10.2025 17:00 β π 8 π 6 π¬ 1 π 0
Arctic researchers - publish with impact! Share your work through the Arctic Frontiers Hub and enjoy community-led editorial support, a 10% APC discount, and greater visibility.
Explore the Hub: bit.ly/3GgNGd3
14.10.2025 15:15 β π 0 π 0 π¬ 0 π 0
Looking to connect with fellow marine scientists? The IABO Hub is your home for publishing, networking, and sharing discoveries in ocean biology.
Find out more: bit.ly/4eAjaHw
06.10.2025 15:17 β π 1 π 0 π¬ 0 π 0
The first #leech body #fossil predates estimated hirudinidan origins by 200 million years
peerj.com/articles/199...
@peerj.bsky.social #Annelida
02.10.2025 14:15 β π 33 π 15 π¬ 1 π 0
My newest publication is out in @peerj.bsky.social! In this collaboration with Ana Valenzuela, Nick Pyenson & Mario Suarez we describe the most complete skeleton of the #AquaticSloth - #Thalassocnus - from #Chile!
Artwork by @alexboersma-art.bsky.social
1/6
#FossilFriday
peerj.com/articles/198...
03.10.2025 13:40 β π 79 π 24 π¬ 1 π 2
Well, finally time to start this account! My scientific app is out! EvoNEST is a completely open app for #laboratories working with alive specimens that could need maintenance or else. Read about it here: doi.org/10.7717/peer...
#datascience #biodiversity #biology #science
06.10.2025 09:30 β π 1 π 2 π¬ 1 π 0
