I am hiring a postdoc for scRNA-seq research in Lund, Sweden on the visual systems of non-model inverts as part of an ERC project on the evolution and ecology of advanced color and polarization vision. Apply here or share the link with someone who may be interested! 🧪
lu.varbi.com/en/what:job/...
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!!
Microscope photo of fossil organic matter from an ancient organism. The organic matter is various shades of brown ranging from concentrated marmite/vegemite, though to highly diluted marmite/vegemite. Some areas have a text like smooth sheets with many tiny holes, some areas have a fluffy texture. A red and blue scale bar shows the image is about 325 microns, or 0.325 millimeters across.
#FossilFriday. This is an extreme close up of the organic matter from a larger #Precambrian #Fossil. This is a stack and stitch of 287 separate photos. The blue and red scale is 100 microns, and the smallest resolvable object on the full res version is just under 1 micron. #Paleontology #Geology
Can it be from any thread? @realfollowers.bsky.social
📢 Paper alert!
Excited to share the first publication of my PhD!😁
We analysed fossil occurrences of the last 23 Ma to understand how geographic range change relates to extinction risk.🌍🐚🪸🦈
Keen to learn more? Here is the paper:
👉 dx.doi.org/10.1111/geb....
he workflow for establishing a hybrid framework to estimate body mass in plesiosaurs. (A) Acquire data from fossil specimens (illustrated here using the modified image of Sachicasaurus vitae, Paramo-Fonseca, Benavides-Cabra & Gutierrez, 2018, CC BY 4.0). (B) Create lateral-view silhouettes of skeletal elements. (C) Estimate the dimensions of missing fossil elements through regression formulae and/or comparisons with closely related taxa. (D) Reconstruct the main body axis, including the dimensions and shape of the skull and vertebral column. (E) Reconstruct the ribcage in both lateral view and transverse cross-sections jointly, then restore the soft-tissue outlines of the main body axis and the flippers. (F) Estimate the body mass using the cross-sectional method (Zhao, 2024). (G) Establish body mass equations from the mass estimates of multiple species. Elements in this figure are not to scale. https://doi.org/10.7717/peerj.21146/fig-1
Silhouettes of representative plesiosaur models from different clades, showing the reconstructed body outlines and transverse cross-sections. All models are scaled to the same length. (A) Thalassomedon haningtoni. (B) Aristonectes quiriquinensis. (C) Sachicasaurus vitae. (D) Liopleurodon ferox (E) Abyssosaurus nataliae. (F) Cryptoclidus eurymerus. (G) Martinectes bonneri. (H) Polycotylus latipinnis. (I) Meyerasaurus victor. (J) Macroplata tenuiceps. (K) Seeleyosaurus guilelmiimperatoris. (L) Microcleidus tournemirensis. (M) Nichollssaura borealis. (N) Brancasaurus brancai. (O) Plesiopterys wildi. https://doi.org/10.7717/peerj.21146/fig-4
Representative plesiosaur reconstructions created in this study. (A) Kronosaurus queenslandicus. (B) Albertonectes vanderveldei. (C) Aristonectes quiriquinensis. (D) Plesiopterys wildi. (E) Brancasaurus brancai. (F) Liopleurodon ferox. (G) Seeleyosaurus guilelmiimperatoris. (H) Meyerasaurus victor. (I) Cryptoclidus eurymerus. (J) Mauriciosaurus fernandezi. All limbs are vertically oriented for display. The dorsal ribs in these skeletal reconstructions have been aesthetically refined and thus differ from the initial versions used to infer ribcage cross-sections. Scale bar equals 1 m. https://doi.org/10.7717/peerj.21146/fig-5
Scatter plot and regression models of the pruned skull-neck dataset. The red curve, green dashed line, and the blue dotted line represent the nonlinear regression model based on a log–logistic (LL) function, the Ordinary Least Squares (OLS) model, and the Phylogenetic Generalized Least Squares (PGLS) model, respectively. Lower values of sample-size corrected Akaike Information Criterion (AICc) and mean per cent prediction error (∣%PE∣) represent better model performance. https://doi.org/10.7717/peerj.21146/fig-8
#Body reconstruction and #size estimation of #plesiosaurs by Ruizhe Jackevan Zhao: peerj.com/articles/21146 in @peerj.bsky.social relevant to #EvolutionaryStudies #MathematicalBiology #Paleontology #Zoology
The studied LBF taxa from the study: 1) Peneroplis pertusus, scale: 500 μm, 2) Soritids (Amphisorus hemprichii), scale: 1 mm, and 3) Amphistegina (A. lesonii), scale: 500 μm.
Coastal contamination is a prevailing problem, but monitoring it in real time isn't always possible (also, the analytics of analyzing seawater is a pain). A workaround is to test for those in organisms and that might be possible with foraminifera. 🧪🌊
Link: www.sciencedirect.com/science/arti...
Do plants develop cancer? Since trees live long and have many cells, shuld we expect to see "tumoral forests" as the on in the image (my drawing)? Spoiler: negative answers to both questions (with exceptions). Understanding why is a fascinating story @guimaguade.bsky.social
Pablo Villar et al discover male octopus mating arms are sensory organs used to find females, navigate internally to the oviduct & deliver sperm. From behavior to structure, these findings offer a framework for how sensory systems shape reproduction & species barriers
www.science.org/doi/10.1126/...
🧵 3 papers by me & my team Ullrich Ecker Fabio Carrella Emily Spearing Almog Simchon ask an urgent question: if you tell people they're being manipulated by AI — deepfakes, AI-written articles, microtargeted ads — is the manipulation defanged?
Thread 👇
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Poland PM: 🇵🇱
Undaria pinnatifida gametophyte
Our work on chromatin evolution in brown algae is now published in @natecoevo.nature.com! We show that developmentally complex brown algae evolved without epigenetic silencing pathways long thought universal, underscoring why non-model lineages are important to study. www.nature.com/articles/s41...
Very important article: was the whole Epic Fail the first war caused by #LLM s telling the credulous what they wanted to hear?
I fear they at least influenced it.
These are very powerful tools. They can do terrible harm if used unwisely.
houseofsaud.com/iran-war-ai-...
Again. If any other country committed illegal invasion, killing civilians (hundreds of children) and forcefully changing regimes, its businesses, organisations, even mentions in public would be shunned, sanctioned, boycotted. People who boycotted Russia or Israel. Where's this energy for the US?
🚨 New Research article 🚨
Slootman et al. (Part 2) propose a novel model for particle settling velocity prediction based on realistic grain dimensional analysis through high-resolution micro-computed tomography.
Read the full publication here: oap.unige.ch/journals/sdk...
Rocks, Fossils, and Ecology: Understanding How Time Is Sampled in the Fossil Record - www.annualreviews.org/content/jour...
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...
‼️🚨 Job Alert ‼️ 🚨
Two Post Doc Opportunities:
PDRA in Macroecology / Paleobiology
my.corehr.com/pls/uoxrecru...
PDRA in Extinction & Conservation / Paleobiology
my.corehr.com/pls/uoxrecru...
Any questions, please get in touch! Closing date May 1st.
Postdoc in Macroevolution - Deadline April 12th -
Join a team of Stuttgart botanists & myself to test drivers of Angiosperm diversification! Fully open process
Submit cover letter, CV, 3 referees & publication list in a single PDF to postdoc-botany@smns-bw.de + 3 key papers (if possible) as PDF
Thanks, we try. My main interest is what is inside of the coprolites and could not do it without great colleagues such as Larissa Catafesta, Paula Dentzien-Dias, Heitor Francischini and multiple others: doi.org/10.5281/zeno...
The next edition is in a month. Submit your work now! forms.gle/yDzB8F12b4ur...
A QUICK VISUAL TOUR OF CHELICERATES’ ANATOMIES Chelicerates’ morphologies are widely variable: from spiders to horseshoe crabs or mites & scorpions, it can be hard to navigate, even more so with the numerous words used to describe these animals’ body parts. This post aims to serve as a simplified tool for you to better understand Cheliceratime’s entries by summarizing the main information about each large chelicerate groups, so don’t forget to swipe if you’re looking for a group in particular!
What time is it? It’s #Cheliceratime !
This post aims to serve as a simplified tool for you to better understand Cheliceratime’s entries by summarizing the main information about each large chelicerate groups, so unroll the thread to find the group you're looking for!⬇️ 🧵
#sciart #arachnid
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The highest similarity of #Polonolimulus to Early Triassic Australian forms - suggests rapid (or earlier) diversification and, together with its discovery within marine-influenced deposits, challenges the idea these extreme forms were fully freshwater-adapted. #Fossils #Triassic #Xiphosurida
Cladosporium sphaerospermum. Macro-and micromorphological characters. A-D. Colony surface grown on PDA (A), OA (B), MEA (C) and MEA plus 5 % NaCl (D) of strains incubated for 14 d at 25 ºC in darkness. E-F. Habit of conidiophores. G-I. Ramoconidia and conidia. E-I. All from 7-d-old SNA slide cultures. A, C-D, F-H, from CBS 193.54 (ex-neotype strain); B, from EXF-738; E, EXF-455; I, EXF-458. Scale bars A-D = 10 mm; E = 100 µm; F = 50 µm; G-I = 10 µm. Source: https://www.ingentaconnect.com/content/wfbi/sim/2007/00000058/00000001/art00009;jsessionid=ukvexe675r98.x-ic-live-02
So we found a weird mold in the Chornobyl Exclusion Zone that seems to be doing something like photosynthesis with ionizing radiation (pos. using melanin). So the natural next stage in trying to understand it - is to send it to space! 🧪
Link: www.frontiersin.org/journals/mic...
A few weeks ago CBC reporter Sheena Goodyear reached out to me for comment on the new Spinosaurus paper. I said I couldn’t, because of Epstein connection Nathan Myhrvold’s involvement with it. We got to talking about how paleontology - especially dinosaur research- remains hostile to women. 🧪
Listed Ancient Sea Creature Diorama: Squids print in my Etsy!
*U.S. orders ship once a week on TUESDAYS due to limited access to a faraway drop-off location.
古代海洋生物ジオラマポスター（ほぼA4）をEtsyショップに追加しました！
hine.etsy.com
#hinemizushima #水島ひね #print #etsy #paleoart
Wikipedia now has higher standards than all universities
