Sign in

Pawel Burkhardt

@pawelburkhardt.bsky.social
2.2K followers 1.5K following 173 posts

Evolution of neurons and nervous systems / choanoflagellates & ctenophores. Deputy Director & Group leader at the Michael Sars Centre, University of Bergen. Webpage: www4.uib.no/en/find-employees/pawel…

PostsRepliesMedia
Pawel Burkhardt @pawelburkhardt.bsky.social · 04/10/2026
Happy #CtenophoreDay! Ctenophores are back. Freshly sampled Mnemiopsis leidyi from Sotra, Norway. These beautiful comb jellies continue to surprise us and are helping reveal new insights into the early evolution of nervous systems. 🌊✨ #CombJellies #Evolution #Neuroscience 1/2
36614
Reposted by Pawel Burkhardt
Emily Mitchell @egmitchell.bsky.social · 03/10/2026
Wrapping up a fantastic field season #laserscanning #Ediacaran fossils in Newfoundland @discoverygeoparknl.bsky.social and Mistaken Point. Our 10th year of laser scanning 🥳
0326
Reposted by Pawel Burkhardt
Thibaut Brunet @thibautbrunet.bsky.social · 01/10/2026
Pre-eukaryotic ancestry of actin-based cell crawling 🤯 An instant must read
1234
Reposted by Pawel Burkhardt
Tessa Montague @tessamontague.bsky.social · 29/09/2026
I'm excited to share our new preprint: Generation of a transgenic cephalopod tinyurl.com/pc86jxz8 Cephalopods (cuttlefish, octopus & squid) are crazy critters that dynamically camouflage to their surroundings by changing the color, pattern, & texture of their skin, which they control w their brain.
13335118
Reposted by Pawel Burkhardt
Iñaki Ruiz-Trillo @multicellgenome.bsky.social · 28/09/2026
We have a new branch in the family tree of animals: Atreyea- a previously unrecognized lineage among the closest unicell relatives of animals. Led by @konsmitsi.bsky.social & @freejakoba.bsky.social together with a fantastic team of collaborators. 🔗 papers.ssrn.com/sol3/papers.... #protistsOnSky
112351
Reposted by Pawel Burkhardt
Alison Fisk @alisonfisk.bsky.social · 27/09/2026
A 5,000 year-old arrow has emerged from melting mountain ice in Norway, offering a glimpse into prehistoric hunting in the high mountains 🏹❄️ archaeologymag.com/2026/09/5000...
archaeologymag.com
5,000-year-old arrow emerges as Norway’s melting mountain ice reveals older archaeological finds | Archaeology News Online Magazine
A 5,000-year-old arrow is among 48 prehistoric finds recovered as melting ice reveals older archaeology in Norway’s Jotunheimen mountains.
341702410
Reposted by Pawel Burkhardt
Quanta Magazine @quantamagazine.org · 18/09/2026
Comb jellies are ancient marine predators whose hairlike extensions known as cilia refract light as they swim, giving them an iridescent shimmer. They are the largest animals known to use cilia for movement. www.quantamagazine.org/ctenophores-...
04610
Reposted by Pawel Burkhardt
Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦ @dudinlab.bsky.social · 21/09/2026
Must admit, ever since I was a kid, I’ve dreamt of seeing microscopy images of #protists in @lemonde.fr Today, protists are everywhere, and several images were taken by the team. And seeing #ichthyosporeans there too?! 🥹 One step closer to showcasing the beauty of the invisible microbial world. 🔬✨
15013
Reposted by Pawel Burkhardt
Lionel Christiaen, PhD (he/him/his) @lionlchristiaen.bsky.social · 22/09/2026
“Jamming with comb jellies” yesterday at the innovation day, our very own @pawelburkhardt.bsky.social teamed up with the Department of Music in a fantastic #SciArt performance tuning live music to the graceful aquatic dance of comb jellies.
Presenter Pawel Burkhardt pointing at a blue slide showing a picture of a comb jelly behind a tank containing swimming comb jelliesMusicians sitting ready to start jamming yo the rhythm of swimming comb jellies.
0132
Reposted by Pawel Burkhardt
Anna Ferraioli @annaferraioli.bsky.social · 20/09/2026
Happy to see this story finally out! 🎉 Grateful to everyone involved @clytia-vlfr.bsky.social ✨
0223
Reposted by Pawel Burkhardt
Duncan McIlroy @dmcediacaran.bsky.social · 18/09/2026
For #FossilFriday this week how about a completely new #Ediacaran? This beauty was discovered by my Masters student Heléna Muirhead-Hunt. It has a calyx not a stem, six stiff, inwardly curved tentacle like arms with pinnules. We should be able to share its name & inferred affinity later today 👀
fossil surface with a bushy fossil with triangle in the might and at least 6 arms with fine lateral pinnules.  the base has a large concentric disk.  the egg shape is a strain marker showing how it has been retrodeformed
16415
Reposted by Pawel Burkhardt
Ian Marshall @ianpgm.bsky.social · 17/09/2026
There's a great new spotlight article in @cp-trendsbiochem.bsky.social by @nmjgeerlings.bsky.social about cable bacteria and electrodes: www.cell.com/trends/bioch...
cell.com
Cable bacteria use extracellular electron transfer
Recent work by Aiyer and colleagues demonstrates that cable bacteria can conserve energy and grow under anoxic conditions by transferring electrons to electrodes via extracellular electron transfer. T...
053
Reposted by Pawel Burkhardt
Max Farnworth @maxfarnworth.bsky.social · 17/09/2026
Apply, apply, apply (till Monday!)
076
Pawel Burkhardt @pawelburkhardt.bsky.social · 16/09/2026
Lovely to see several pieces of our ctenophore work featured in this beautiful new story from @quantamagazine.org 🪼 Great piece by @mstarling.bsky.social, also featuring work by @stevehaddock.bsky.social, @arnausebe.bsky.social & @hejnol.bsky.social. www.quantamagazine.org/ctenophores-...
quantamagazine.org
Ctenophores Aren’t Just Beautiful. They’re Biological Wonders. | Quanta Magazine
Comb jellies are helping answer fundamental questions in biology, from how the earliest nervous systems evolved to how bioluminescence works.
27532
Reposted by Pawel Burkhardt
Brett Baker @archaeal.bsky.social · 16/09/2026
www.nature.com/articles/d41...
nature.com
These bizarre, much-coveted microbes are revealing the origins of complex life
Researchers are racing to culture a menagerie of exotic organisms and finding lots of surprises along the way.
03215
Reposted by Pawel Burkhardt
Hoyaboya @hoyaboya1.bsky.social · 16/09/2026
Mitsi et al. (2026-09 preprint, SSRN) 「メタゲノミクスにより,動物の近縁群における新たなクレードが明らかになる」 Metagenomics Reveals a Novel Clade among Relatives of Animals dx.doi.org/10.2139/ssrn... [Atreyea clade nov.] (新クレード) 糸星状虫類Filastereaの姉妹群とみられる新規クレード,Atreyeaを発見!
dx.doi.org
Metagenomics Reveals a Novel Clade among Relatives of Animals
Reconstructing the origin of animals requires a broad sampling of their closest unicellular relatives, and a robust understanding of the phylogenetic relationsh
074
Pawel Burkhardt @pawelburkhardt.bsky.social · 15/09/2026
What happens when comb jellies meet live music? 🪼🎶 At UiB Innovation Day on Sep 21st, ctenophores will move, shimmer & “perform” while musicians respond live. I’ll open with a glimpse of their biology - and what it might inspire. In Bergen? Come and join us! www4.uib.no/en/events/ui...
2347
Pawel Burkhardt @pawelburkhardt.bsky.social · 14/09/2026
Fantastic talk by Amy Courtney @amycourtneyyy.bsky.social on novel modes of neurotransmission in the octopus visual system 🐙🧠. Beautiful biology & a fascinating reminder of how much there is still to discover about the diversity of nervous systems! @msarscentre.bsky.social @thembauk.bsky.social
0222
Reposted by Pawel Burkhardt
Allen Collins @agcollins.bsky.social · 13/09/2026
Our new paper on the distribution of the benthic ctenophore Vallicula integrates diverse observations (iNAT, literature, museum specimens, and eDNA metabarcodes) to show that Vallicula multiformis is circumtropical to subtropical. onlinelibrary.wiley.com/doi/10.1111/...
Global map with points of observations stemming from diverse sources. Shows a circumtropical to subtropical distribution.
142
Reposted by Pawel Burkhardt
George Matsumoto @georgeimatsumoto.bsky.social · 12/09/2026
🧪📍🌊 🦑🍎 @mbarinews.bsky.social invites applications for in-person postdoctoral fellowships in the fields of biological, chemical, and physical oceanography, marine geology, and ocean engineering. Deadline to apply is 5pm PT on December 2, 2026. www.mbari.org/about/career...
mbari.org
Postdoc Fellowships • MBARI
Each year, MBARI invites applications for several in-person postdoctoral fellowships in the fields of biological, chemical, and physical oceanography, marine geology, and ocean engineering. MBARI also...
03940
Reposted by Pawel Burkhardt
Jessica Goodheart @mollusksatamnh.bsky.social · 11/09/2026
The Goodheart Lab is seeking a full-time Postdoctoral Fellow on an NSF-funded project to study the process of kleptocnidy, the theft and storage of nematocysts, in nudibranch mollusks. Project link: www.nsf.gov/awardsearch/...). Application here: careers.amnh.org/postings/4908.
nsf.gov
Award Details - NSF Award Search
Find award details and explore award abstracts and publications.
12625
Reposted by Pawel Burkhardt
Current Biology @currentbiology.bsky.social · 10/09/2026
In our recent issue we interview Susana Coelho, who uses brown algae to study evolution, development, and life-cycle complexity at the Max Planck Institute for Biology. Read the Q&A to find out more about Susana’s most important scientific influences: www.cell.com/current-biol...
cell.com
Susana Coelho
Interview with Susana Coelho, who uses brown algae to study evolution, development, and life-cycle complexity at the Max Planck Institute for Biology.
03618
Reposted by Pawel Burkhardt
Georgia Rapti @georgiarapti.bsky.social · 10/09/2026
Are you working or want to work in Astrocyte research? This one’s for you! Join us in Porto for the EMBO Workshop “Astrocytes: from molecules to systems”. 📍 Porto | 12–16 April 2027 📅 Apply by 2 November 2026 meetings.embo.org/event/27-ast... #EMBOAstrocytes #Astrocytes #Neuroscience #Glia
041
Reposted by Pawel Burkhardt
Tim Vernimmen @timvernimmen.bsky.social · 09/09/2026
My latest story for National Geographic is about two @nature.com studies that reveal new fossils and tools that suggest #Denisovans were thick-skulled but nimble-minded. www.nationalgeographic.com/history/arti...
nationalgeographic.com
Researchers Discover Rare Denisovan Bones in a Cave in China
A trove of bones, teeth, and more than 1,300 stone tools unearthed at Bianfu Cave offers a detailed look at how these extinct, elusive ancient humans hunted and survived.
0233
Reposted by Pawel Burkhardt
Max Farnworth @maxfarnworth.bsky.social · 08/09/2026
Reminder I am hiring a postdoc and PhD student. Thanks to all the applications I already received 🙏 If you know anyone particularly with single cell expertise for the postdoc position, please let me know!
178
Reposted by Pawel Burkhardt
Max-Planck-Gesellschaft @maxplanck.de · 09/09/2026
We are hiring! Start at a #MaxPlanckInstitute with your own independent Max Planck Research Group. This position is equivalent to a W2 Professorship at a German university, or Associate Professor internationally. 🔗Apply until October 14th! www.mpg.de/career/max-p... #ScienceCareer #MPRG #TenureTrack
Call for independent Max Planck Research Groups
0112136
Reposted by Pawel Burkhardt
Steve Haddock @stevehaddock.bsky.social · 09/09/2026
One year ago, The Radiant Sea appeared in print! Still super happy with how it turned out. Our mission to share a different view of ocean life seems to have succeeded.💙 Named a top ten photography book of 2025 by @smithsonianmag.bsky.social, and many anecdotes from people who appreciated it. 🙏 🌊🧪🦑
04311
Reposted by Pawel Burkhardt
Science Magazine @science.org · 04/09/2026
New findings mark a potential use for heparin as a safe, accessible treatment to relieve people suffering from painful sea nettle stings. Learn more in this week’s issue of #ScienceAdvances: scim.ag/4zSZZ63
Atlantic sea nettle jellyfish pictured in the Texas State Aquarium. Sea nettle jellyfish sting millions of people every year, and though their venom is nonlethal, it can be toxic to the skin, heart, and other parts of the body. Using whole-genome CRISPR screening, Denes and D’Araujo et al. pinpointed which human genes and pathways effectively modify the action and effect of the venom. Genome screening found that heparin, an anticoagulant, can protect cells from sea nettle venom. The authors’ findings mark a potential use for heparin as a safe, accessible treatment to provide relief for people suffering from painful sea nettle stings.

Credit: Gregory G. Dimijian / Science Source
0143
Reposted by Pawel Burkhardt
Thibaut Brunet @thibautbrunet.bsky.social · 02/09/2026
🚨 New preprint alert! 🚨 Choanoflagellates reorganize their global cytoskeletal architecture within seconds to explore confined microspaces. This is the main PhD work of the amazing @maitefreired.bsky.social www.biorxiv.org/content/10.6... A tread 🧵⬇️
biorxiv.org
Rapid repurposing of microvillar content drives a flagellate-to-amoeboid switch in the closest relative of animals
Animal cells extensively remodel their cytoskeleton during differentiation and can notably switch between two major motility modes: flagellum-based swimming and actin-based crawling. We previously sho...
316677
Reposted by Pawel Burkhardt
Elizabeth Beston @elizabethbeston.bsky.social · 31/08/2026
This was a complete treat! My first Beroe sp. Ctenophore (comb jelly). What an animal! #marineplankton 🦑
110918
Reposted by Pawel Burkhardt
Kaessmann Lab @kaessmannlab.bsky.social · 31/08/2026
We’re hiring! Experimental #Postdoc and computational and/or experimental #PhD positions in evolutionary genomics are available in our lab in Heidelberg: home.kaessmannlab.org/openPositions Please repost and spread the word!
home.kaessmannlab.org
Kaessmann Lab
02632
Reposted by Pawel Burkhardt
Casey Dunn @caseywdunn.bsky.social · 25/08/2026
My new book, Phylogenetic Biology, is now published. Available online for free at dunnlab.org/phylogenetic... . Physical copies can be purchased at shop.lightningsource.com/b/085?params... or your favorite bookstore.
12319161
Reposted by Pawel Burkhardt
MBARI @mbarinews.bsky.social · 28/08/2026
MBARI hosted experts from around the world for Ctenopalooza Ctwo. Researchers shared discoveries and sparked exciting collaborations, while @montereybayaquarium.org shared new developments in culturing these dazzling drifters. 🌊🌈🌊 Learn more: www.mbari.org/news/mbari-h...
mbari.org
MBARI hosts workshop to share latest research on comb jellies • MBARI
This week, MBARI welcomed experts from a wide range of scientific disciplines to discuss the latest research on ctenophores, also known as comb jellies. The Ctenopalooza Ctwo workshop helped foster ne...
1286
Reposted by Pawel Burkhardt
Science Magazine @science.org · 29/08/2026
When stressed, this comb jelly reverts to a larval form, then matures again when favorable conditions return. Learn more: scim.ag/4gmdt2J #ScienceMagArchives
417241
Reposted by Pawel Burkhardt
Harmit Singh Malik @harmitmalik.bsky.social · 21/08/2026
@hhmi-science.bsky.social has several upcoming competitions for scientists at various career stages. Here is a list (pl share whatever you feel will be useful): 1) Rising college juniors & seniors in summer 2027 can apply to the Cech Fellows program (www.hhmi.org/programs/cec...) Deadline: Nov 10
hhmi.org
Summer Undergraduate Research Experience (REU) | Cech Fellows | HHMI
The Cech Fellows Program is a paid, nine-week summer research experience empowering the next generation of scientific leaders.
22326
Pawel Burkhardt @pawelburkhardt.bsky.social · 20/08/2026
Beautiful & absolutely mesmerizing 🤩
0304
Reposted by Pawel Burkhardt
Darrin T. Schultz @dts.bsky.social · 19/08/2026
Our new paper in Science Advances asks how animals' genomes have changed since their origin from a common ancestor over 600 million years ago, and what patterns in their DNA have arisen in the churn of speciation and extinction. www.science.org/doi/10.1126/...
Five-panel diagram explaining fusion-with-mixing in chromosome evolution. Red and blue represent two different ancestral chromosomes throughout.

A, Fusion-with-mixing: a red chromosome and a blue chromosome fuse into one half-red, half-blue bar. Down the page, successive rows show inversions, drawn as X-shaped crossings between rows, progressively interleaving the two colors until the bottom bar is finely striped. A widening gray wedge labeled Entropy runs alongside an arrow marked Time plus evolution, pointing down.

B, Independent regulation: two separate chromosomes, one red and one blue. In each, a regulatory element, drawn as an oval, acts by an arrow on a gene within its own chromosome only.

C, FWM and novel regulation: on a fused, mixed chromosome, a red gene and a blue gene now sit next to each other across an inversion breakpoint. Red and blue arrows show regulatory elements reaching across it to act on the other chromosome's gene.

D, Regulatory entanglement: an extensively mixed chromosome, finely striped. Below it, a row of alternating red and blue genes is linked by a dense web of crossing curved arrows, so many overlapping regulatory connections that unmixing the chromosome would break them.

E, Emergence of entangled loci: a five-species phylogeny. A red and a blue chromosome fuse at an ancestral node, and helical icons on later branches mark continued mixing. Colored boxes mark four new red-blue regulatory interactions arising after inversions. Species A keeps its two chromosomes separate. In species B through E, the two earliest interactions, cyan boxes 1 and 2, are present in every descendant lineage, while later ones, yellow 3 and magenta 4, appear in fewer.
315055
Reposted by Pawel Burkhardt
Darrin T. Schultz @dts.bsky.social · 19/08/2026
I'm thrilled to share that I've started as an Assistant Professor in Biological Sciences and the Oceans Research Center at Lehigh University! I'm building a group in evolutionary genomics to study the origin of animals, and to use those concepts to better understand human disease. More: evogeno.me
Darrin Schultz, a man with curly dark hair and tortoiseshell glasses, smiling at the camera in a brown blazer over a blue patterned shirt with sunglasses hooked on the collar, standing in front of a stone wall.
25912
Reposted by Pawel Burkhardt
Emilie Ellis @e-ellis1.bsky.social · 17/08/2026
🦋 I’m recruiting a fully funded PhD student at the University of Helsinki: understanding how butterflies respond to climate change across Europe. Apply by 30 Sept: Full details: jobs.helsinki.fi/job-invite/5... Please share! #ecology #job #phd
jobs.helsinki.fi
Doctoral Researcher (PhD student) in Butterfly Ecology and Climate Change across Europe
Doctoral Researcher (PhD student) in Butterfly Ecology and Climate Change across Europe
07480
Pawel Burkhardt @pawelburkhardt.bsky.social · 18/08/2026
Thank you for highlighting our work Urvashi Goswami & @prelights.bsky.social
092
Reposted by Pawel Burkhardt
Luis Alberto Bezares Calderón @lbezarescalderon.bsky.social · 16/08/2026
Our team is recruiting a PhD student to investigate the evolution of pressure sensation in Zooplankton! The project will use marine invertebrate larvae to explore the molecular, cellular, and neuronal mechanisms behind this fascinating sensory system. More details here: bit.ly/3TTeF4Q
bit.ly
12825
Reposted by Pawel Burkhardt
Ctenophores Rock! @ctenophoresrock.bsky.social · 16/08/2026
If you'd like to learn more about reverse development in Mnemiopsis leidyi, check out @the-node.bsky.social post by @joanjsoto.bsky.social & @pawelburkhardt.bsky.social on their documented discovery: thenode.biologists.com/reverse-deve... 🦑
thenode.biologists.com
Reverse development in the ctenophore Mnemiopsis leidyi - the Node
Joan and Pawel show us a timelapse video of reverse development of the ctenophore Mnemiopsis leidyi, and tell the story behind it.
1156
Reposted by Pawel Burkhardt
Chris Mah @echinoblog.bsky.social · 13/08/2026
MORE glass sponge shaped like a mushroom, 3500ish m #okeanos Cook Islands, Pepe seamount #spongeThursday
white round top with glass fibers rooting to the bottom
16710
Reposted by Pawel Burkhardt
John Wallingford @jbwallingford.bsky.social · 04/08/2026
Cilia alert! Last year Juyeon Hong described a new domain in 9+2 cilia called the EDT, the extreme distal tip. Now, she's found a new protein required for its assembly, but only in non-mammalian vertebrates. A cool evo-cell / protein evolution story in @cellreports.bsky.social tinyurl.com/2xvdskx6
14015
Reposted by Pawel Burkhardt
National Trust @nationaltrust.org.uk · 12/08/2026
ANNOUNCEMENT: All our sundials will be out of order this evening between about 6pm and 8pm, we apologise for any inconvenience this may cause. Normal service will resume tomorrow. In unrelated news, enjoy the eclipse later... Photos: Mike Selby, Annapurna Mellor, Chris Davies, John Millar
A wall-mounted sundial inside a walled garden. Text on the sundial reads: "fear god, obey ye king"A traditional sundial on a plinth, formal gardens surround itThe sun beams down on a traditional sundial, with heather visible in the backgroundA shot of a sundial from above. It's mounted on a stone plinth. Text on the side reads "KEW BRIDGE"
201711458
Reposted by Pawel Burkhardt
Adria LeBoeuf @adriatica.bsky.social · 05/08/2026
Come join the @socialfluids.bsky.social lab in Cambridge to study the evolution of Socially Transferred Materials! Fun new HFSP project btwn UK, NL and Costa Rica! Deadline September 7th #Postdoc #JobAlert #Evolution #Bioinformatics #STM #socialfluids www.cam.ac.uk/jobs/researc... leboeuflab.com
cam.ac.uk
Research Associate (Fixed Term)
A Research Associate position is available in the Social Fluids Lab, led by Dr. Adria LeBoeuf, in the Department of Zoology. The post is funded by a new 3-year international Human Frontier Science Pro...
23332
Pawel Burkhardt @pawelburkhardt.bsky.social · 11/08/2026
Postdoc opportunity in Copenhagen! Interested in marine bioluminescence, comb jellies & experimental biology? A great 2-year postdoc (possibility of 1-year extension), working with CRISPR, imaging & EM in the labs of Anders Garm & Cornelia Jaspers. Deadline: 16.08 jobportal.ku.dk/videnskabeli...
jobportal.ku.dk
Postdoc in Marine Bioluminescence - re-advertisement
03539
Reposted by Pawel Burkhardt
Dr. B. Duygu Özpolat (she/her) @biyolokum.bsky.social · 24/07/2026
The new SDB shirt designs! Seeing the shirts in person is magical. Amazing work by Sarah Paramore. sdb-store.printify.me @parahsaramore.bsky.social @socdevbio.bsky.social #SDB2026 #SciArt
1133
Reposted by Pawel Burkhardt
Royal Society Publishing @royalsocietypublishing.org · 10/08/2026
New research from #ProcB: A morphological phylogenetic approach to the evolution of symmetry in animals doi.org/10.1098/rspb... | #Ecology #Evolution #Palaeontology
0218
Reposted by Pawel Burkhardt
Zak Swartz @zakswartz.bsky.social · 06/08/2026
Shining stars! 🌟 🎉 Our latest preprint is out, led by postdoc Beverly Naigles and research assistant Brian McGonagle, two amazing members of the lab and @mblscience.bsky.social community. www.biorxiv.org/content/10.6...
14414