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Jindra Brejcha

@jindrabrejcha.bsky.social
157 followers 168 following 117 posts

Father|Husband|Son|Biologist 👁🌈🦎🐍🐢🐊🦜 sites.google.com/natur.cuni.cz/jind…

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Jindra Brejcha @jindrabrejcha.bsky.social · 22/09/2026
Gift animal never understood. Nobody looked.
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Jindra Brejcha @jindrabrejcha.bsky.social · 16/09/2026
Oh Canada ❤️💋🌹
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Jun Otsuka @junotk.bsky.social · 15/09/2026
Just got a physical copy of Pim Edelaar's new book, the Selective Organism: and Expanded Theory of Adaptive Evolution. This is a truly wonderful book, applying causal methods to real eco-evo problems. And better yet, it is freely available: academic.oup.com/book/63165 Congrats, Pim!
academic.oup.com
The Selective Organism: An Expanded Theory of Adaptive Evolution
Abstract. Adaptive evolution is often described as natural selection acting on the genetic variation that affects ecological performance. This description
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Jindra Brejcha @jindrabrejcha.bsky.social · 07/09/2026
Day 5 of #MATBIOX What was all this good for? Urszula Foryś @Uni Warszawski explored cancer and pharmacokinetics. Jindrich Brejcha @sciencecharles.bsky.social closed reflecting on goals of modelling and the evolutionary importance of process thinking. Then farewells. @4euplusalliance.bsky.social
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Jindra Brejcha @jindrabrejcha.bsky.social · 07/09/2026
Day 4 of #MATBIOX Hydra Day! Szymon Cygan @uniheidelberg.bsky.social introduced reaction–diffusion models, and a biomechanical perspective. Stan Mareé @Cardiff University then took us through Turing’s ideas. Hands-on exercises, and plenty of use of the whiteboard! @4euplusalliance.bsky.social
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Jindra Brejcha @jindrabrejcha.bsky.social · 01/09/2026
Day 2 of #MATBIOX was all about modelling population dynamics and evolution. Luis Almeida @sorbonne-universite.fr and Matteo Brilli @University Milan led us through lectures and hands-on workshops. Wonderful dinner and a night walk through Warsaw. What a lovely day! @4euplusalliance.bsky.social
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Jindra Brejcha @jindrabrejcha.bsky.social · 31/08/2026
31/08/2026 - Day 1. Kicked off the 2nd edition of #MATBIOX #MathematicalBiology @UniwersytetWarszawski! Historic campus, introduction by flash talks and opening keynote by Prof. Dariusz Wrzosek Great atmosphere - bring on Day 2! @4euplusalliance.bsky.social @sciencecharles.bsky.social
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Science Magazine @science.org · 28/08/2026
Just when it seems like the world is falling apart in every way possible, physicists have identified a new way for water to corrode things. Learn more: scim.ag/4xndGsi
Scientists identify a new way for your car to corrode
Water droplets sliding across surfaces can gain enough static electricity to break down anticorrosion coatings
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Susana Monsó @susanamonso.com · 27/08/2026
I wrote a little something on the value of philosophy for animal cognition. Out now in Science’s Expert Voices column.
science.org
Science is based on assumptions. Philosophy can make sure they’re the right ones.
When I was a postdoctoral researcher, I spent several years teaching at an interdisciplinary research institute in Vienna, Austria. There, my main course sought to train master’s students—mostly biolo...
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Jindra Brejcha @jindrabrejcha.bsky.social · 21/08/2026
We will not forget nor forgive, ever www.ebsco.com/research-sta...
ebsco.com
Soviet Union Invades Czechoslovakia | Political Science | Research Starters | EBSCO Research
<p>The Soviet Union's invasion of Czechoslovakia in August 1968 marked a decisive moment during the Cold War, reflecting the tensions between liberalization movements and authoritarian control within ...
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Science X / Phys.org @sciencex.bsky.social · 05/08/2026
The smallest known nonbird dinosaurs weighed nearly 1 pound, far above the tiniest birds and mammals. The pattern suggests physiology alone could not explain why truly tiny dinosaurs were rare or absent. doi.org/hcdrh6
phys.org
Were there tiny dinosaurs? New study explores one of evolution's biggest mysteries
Dinosaurs are famous for being big, from the towering Tyrannosaurus rex to the colossal Apatosaurus. But a new study published today in the journal Evolution by scientists at the American Museum of Natural History and Princeton University suggests that one of the greatest mysteries of dinosaur evolution isn't how some species became giants—it's why even the smallest dinosaurs never became truly tiny.
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Nature Portfolio @natureportfolio.nature.com · 02/08/2026
Did you know all living things emit a faint glow? They're called 'biophotons,' and ultra-weak ‘biophotons’ might be used to diagnose disease or could even represent a new signalling mechanism in cells, according to a feature in Nature. ⚛️ 🧪
go.nature.com
All living things emit a faint glow. Could this light be useful?
Ultra-weak ‘biophotons’ might be used to diagnose disease, or could even represent a new signalling mechanism in cells.
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Jindra Brejcha @jindrabrejcha.bsky.social · 13/07/2026
Will never forget Dr. Alan Grant 🫶🦕🦕🦕
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Jindra Brejcha @jindrabrejcha.bsky.social · 09/07/2026
Our latest paper is now out in the Journal of Separation Science! Thanks, Prof. Bosáková, for a great collaboration. 🧪🧪🧪 dx.doi.org/10.1002/jssc...
dx.doi.org
An Overview of Pterin Analysis in Biological Samples: From Occurrence and Properties to Sample Pretreatment Combined With Hyphenated Separation Techniques
Pterins are a structurally diverse group of biologically active compounds within the pteridine family, with key roles in pigmentation, redox metabolism, light sensing, and cellular signaling across a....
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Jindra Brejcha @jindrabrejcha.bsky.social · 06/07/2026
Neil Shubin for President!
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Jindra Brejcha @jindrabrejcha.bsky.social · 02/07/2026
🧪 Happy @sciencecharles.bsky.social that this study made it to @pnas.org , it was a real conundrum to solve and it all begun with poster by @abalosaurus.bsky.social 🦎🦎🦎. Good job @premdaguilar.bsky.social and many thanks to @evolgen.bsky.social and Ethology Lab @uv.es. www.pnas.org/doi/10.1073/...
pnas.org
A transcription factor modulates dermal architecture to generate structural and pigment color diversity in lizards | PNAS
The way organisms perceive the world influences their evolution. Many animals detect ultraviolet (UV) light invisible to humans, creating sensory c...
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Jindra Brejcha @jindrabrejcha.bsky.social · 24/06/2026
I don't follow all the latest advances in EM closely, and I don't even fully grasp what this means for chromatin biologists, but this is absolutely amazing to see. This is why I love microscopy: things that once existed only in your imagination are suddenly right there in front of your eyes.
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Science X / Phys.org @sciencex.bsky.social · 20/06/2026
In 99 pair dances by wild red-crowned cranes, some movements were sometimes determined by a partner’s previous action, suggesting hidden rules in timing and sequence. doi.org/hb8btj
phys.org
Crane pair dances follow hidden rules, with performances revealing partner-driven timing
Animal pairs engage in mutual signaling by simultaneously performing a diverse repertoire of behaviors. A famous example is the sophisticated dance (mutual displays) performed by bird pairs.
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Kai Caspar @nomascus.bsky.social · 19/06/2026
How salient is human eye appearance compared to that of other primates? This excellent new study by Perea-García et al. suggests that under some conditions, chimp-like eyes actually have a signalling advantage. 🧪 www.cambridge.org/core/journal...
Model from the Perea-Garcia et al. study wearing a dark lens to mimic chimp-like eyes on the left and her natural eyes on the right (note that different from chimps, the model has a grey iris color).
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Jindra Brejcha @jindrabrejcha.bsky.social · 14/06/2026
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Jindra Brejcha @jindrabrejcha.bsky.social · 10/06/2026
ct24.ceskatelevize.cz/clanek/veda/...
ct24.ceskatelevize.cz
Kůže ještěrek umí triky s ultrafialovým světlem. Funguje jako maják, popsali čeští vědci
Vědci z Univerzity Karlovy v Praze a univerzity ve Valencii objevili zatím neznámý mechanismus tvorby barev u ještěrek rodu Podarcis. Popsali, že ultrafialově modré skvrny na bocích těchto ještěrek vz...
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Jindra Brejcha @jindrabrejcha.bsky.social · 08/06/2026
Quite a dream job!
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Jindra Brejcha @jindrabrejcha.bsky.social · 08/06/2026
🫶 www.theguardian.com/world/2026/j...
theguardian.com
Armenia’s pro-Europe party wins election and cements shift away from Russia
Result strengthens PM Nikol Pashinyan’s drive for deeper integration with Europe despite warnings from Moscow
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Jindra Brejcha @jindrabrejcha.bsky.social · 04/06/2026
🧪🧪🧪
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Jindra Brejcha @jindrabrejcha.bsky.social · 04/06/2026
Our study unraveling the structural and pigmentary mechanisms of UV color signal production in Podarcis wall lizards is now published in iScience www.cell.com/iscience/ful... @sciencecharles.bsky.social @uv.es @mff.unikarlova.cuni.cz
cell.com
Unraveling the structural and pigmentary mechanisms of UV color signal production in Podarcis wall lizards
Animals; animal physiology; cellular physiology
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CrimethInc. Ex-Workers' Collective @crimethinc.com · 04/06/2026
To our dismay, the artist and author Marjane Satrapi has passed away. As she wrote, ordinary Americans and Iranians have more in common with each other than we do with either of our governments, which have far too much in common with each other. We honor her memory and oppose the war.

NO WAR WITH IRAN!
The world is not divided into countries. The world is not divided between East and West.
You are American, I am Iranian, we don’t know each other, but we talk together
& we understand each other perfectly. The difference between you
& your government is much bigger than the difference
between you & me.
And the difference between me
& my government is much bigger
than the difference
between me & you.
And our governments are very much the same...
—Marjane Satrapi
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Jindra Brejcha @jindrabrejcha.bsky.social · 02/06/2026
Čína hrozí Česku sankcemi: Požaduje, aby Češi každou pochybnou směs masa, koření a solamylu přestali nazývat čínou az247.cz/cina-hrozi-c...
az247.cz
Čína hrozí Česku sankcemi: Požaduje, aby Češi každou pochybnou směs masa, koření a solamylu přestali nazývat čínou - AZ247.cz - víc než jen pravda
Premiér Andrej Babiš po jednání s čínským velvyslancem oznámil, že Česká republika je připravena Pekingu plně vyhovět. Případné sankce by podle vládních
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Jindra Brejcha @jindrabrejcha.bsky.social · 02/06/2026
Metallodielectric photonic glass paints enable hyperchromatic, angle-independent structural color across the full visible spectrum | PNAS www.pnas.org/doi/10.1073/...
pnas.org
Metallodielectric photonic glass paints enable hyperchromatic, angle-independent structural color across the full visible spectrum | PNAS
Colloidal photonic glasses are attractive as dye-free, solution-processable pigments that show weak angle dependence, but their red hues are notori...
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Steve Brusatte @stevebrusatte.bsky.social · 29/05/2026
Love this. Fantastic new study confirming the archosaur position of turtles. And not solely based on molecular data of living species, but now underpinned by anatomical evidence from fossils. Great combo of CT, fossils, Bayesian phylogenetics. Congrats to @semifossorial.bsky.social & team.
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Jindra Brejcha @jindrabrejcha.bsky.social · 29/05/2026
Yeah, corporations don't give a damn about scientific integrity.
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Andrew Digby @digs.bsky.social · 08/05/2026
Sir David Attenborough has a soft spot for #kakapo. We named a kākāpō after him (Attenborough the bird is now ten years old, living on Te Kākahu) and he kindly narrated a short video for us about them, which you can see here: youtu.be/5eZVjQowNvw?.... #attenborough #conservation
A male kākāpō In a roost. Credit: Andrew Digby
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Kate Laskowski @katelaskowski.bsky.social · 10/02/2026
How do we know our research results are REAL? We replicate them! Most folks agree but lament on how hard it is to publish these replications. My dearest gentle reader, lament no more! Delighted to unveil: Replication Studies, a new section of Behavioral Ecology 1/ academic.oup.com/beheco/artic...
academic.oup.com
Replication studies: a win-win for early-career training and behavioral ecology
Replicating previous research builds confidence that results are real and meaningful. But close replications are rare due to limitations in resources and d
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Stelios Katsanevakis @skatsanevakis.bsky.social · 11/04/2026
🌍 New paper! The global spread of #Sunfish reveals a growing invasion threat—30 species established beyond native ranges, driven by human pathways and climate change. Time to reconcile #fisheries benefits with #biodiversity costs. 🔗 doi.org/10.1111/faf.... #bioinvasions #InvasiveSpecies 🌐 🧪
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Scott Coyle @cellraiser.bsky.social · 24/03/2026
Congratulations to my student Dennis Bolshakov and his coauthors @weix.us, Tommy, and @born2raisecell.bsky.social on making the cover of ACS Synthetic Biology! A great paper and an awesome cover 🥳 pubs.acs.org/doi/10.1021/...
The cover art, inspired by the classic Pink Floyd cover art from "The Dark Side of the Moon", depicts a white noise protein oscillation being filtered by a yeast expressing a specific synthetic circuit design into more precise, single-color waveforms. This visual echoes the noise-guided design strategies associated with Bolshakov et al.
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Robin Lacassin @rlacassin.bsky.social · 08/04/2026
These "discover something" journals from Springer Nature are here to steal your research money, as those from MDPI and Frontiers (and many others). ⚒️ 🧪 Learn more here: the-strain-on-scientific-publishing.github.io/website/post... 2/2
the-strain-on-scientific-publishing.github.io
Springer Nature Discovers MDPI – The Strain on Scientific Publishing
Home page for the paper ‘The Strain on Scientific Publishing’ by Mark A Hanson, Dan Brockington, Paolo Crosetto and Pablo Gomez Barreiro
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Jindra Brejcha @jindrabrejcha.bsky.social · 20/03/2026
Anyone who jumps into water gets wet; when Chuck Norris jumps into water, the water gets Chuck Norris.
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Nature Portfolio @natureportfolio.nature.com · 17/03/2026
Live parrots were transported over the Andes for their feathers in ancient Peru, according to research in Nature Communications. Analysis of still-colourful feathers found in a Ychsma-era tomb suggests a complex and widespread economy that predates the Incan empire. go.nature.com/4umFAnh 🏺 🧪
Ancient feathers found in the Ychsma tomb in Pachacamac.  

Credit: George Olah
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Jindra Brejcha @jindrabrejcha.bsky.social · 16/03/2026
Oscar-winning documentary youtu.be/9150MCMSrgc?...
youtu.be
Mr Nobody Against Putin - Official Trailer
YouTube video by Madman Films
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Pat Thomson @patthomson.bsky.social · 08/03/2026
Academic writers often feel uncomfortable but that’s often OK Here’s why patthomson.net/2026/03/08/g...
patthomson.net
getting comfortable with being uncomfortable
Good academic writing means sitting with a discomfort that never entirely goes away. It’s not a discomfort that comes from having nothing to say. Most of us have more than enough ideas crowding the…
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Bibiana Rojas @biobiiana.bsky.social · 06/03/2026
Last year, J. Endler published an inspiring essay in @behavecol.bsky.social on what we should be doing as behavioral ecologists 👉 doi.org/10.1093/beheco/araf029. According to him, "we need to put Ecology back into Behavioural Ecology: we need to make a lot more use of Natural History" (1/5)
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Javier Abalos @abalosaurus.bsky.social · 07/01/2026
🧪 Check this if you are interested in the convoluted evolution of lacertid colours. Yes, I know, we missed a unique opportunity opportunity to call the phenomenon "Chromatic Barrier of the Appennines", which totally sounds like a badass DnD spell. #evolution #colsci #lizard #sexualselection
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Science X / Phys.org @sciencex.bsky.social · 24/11/2025
Orangutans rely on cultural learning to acquire their complex diets, with social interactions playing a critical role in building the broad knowledge needed for survival in the wild.
phys.org
Orangutans can't master their complex diets without cultural knowledge, research reveals
When a wild orangutan leaves its mother after spending many years by her side, it has a mental catalog of almost 250 edible plants and animals, and the knowledge of how to acquire and process them.
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Jindra Brejcha @jindrabrejcha.bsky.social · 17/11/2025
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Oded Rechavi @odedrechavi.bsky.social · 15/10/2025
BIG ANNOUNCEMENT📣: I haven’t been this excited to be part of something new in 15 years… Thrilled to reveal the passion project I’ve been working on for the past year and a half!🙀🥳 (thread 👇)
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Springer Nature @springernature.com · 20/10/2025
Penguin poop might help cool Antarctica. A study in @commsearth.nature.com suggests ammonia from Adelie penguin guano boosts cloud formation, which could reduce surface temperatures and slow sea ice loss: www.nature.com/articles/s43... #AnimalBehaviour #ClimateSky 🧪
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Schmidt Ocean Institute @schmidtocean.bsky.social · 08/10/2025
In celebration of World Octopus Day, we wanted to revisit one of our favorite cephalopod sightings, the glass octopus — Vitreledonella richardi filmed during a month-long #PhoenixIslandsCoral expedition in 2021.
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Jindra Brejcha @jindrabrejcha.bsky.social · 08/10/2025
Myslef @sciencecharles.bsky.social, and Adam Vackar (adamvackar.com) together form #TransparentEyeball (transparenteyeball.net). #SensingChange by Art/Switch (www.artswitch.org, New York) and us, is happening right now in New York, USA www.eventbrite.com/cc/festival-... 🧪
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Nature @nature.com · 02/10/2025
Jane Goodall, known for her pioneering work with chimpanzees, has passed away aged 91 go.nature.com/46K10ja
go.nature.com
Jane Goodall’s legacy: three ways she changed science
The primatologist challenged what it meant to be a scientist.
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Jindra Brejcha @jindrabrejcha.bsky.social · 30/09/2025
Paleolithic painters had the blues | Science | AAAS www.science.org/content/arti...
science.org
Paleolithic painters had the blues
Two recent studies shine light on the earliest known artistic usages of blue pigment
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Jindra Brejcha @jindrabrejcha.bsky.social · 27/09/2025
Olfactory floral mimicry of injured ants mediates the attraction of kleptoparasitic fly pollinators: Current Biology www.cell.com/current-biol...
cell.com
Olfactory floral mimicry of injured ants mediates the attraction of kleptoparasitic fly pollinators
Mochizuki reports a plant that lures pollinating flies by imitating the scent of ants injured by predators. This study reveals the first known case of ant mimicry in flowers and uncovers previously un...
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