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Ana Santacruz

@anasaruz.bsky.social
118 followers 109 following 12 posts

Scientist, fish - parasite fan | #cavefish | 🏳️‍🌈 Postdoc at the Rohner lab at @uni-muenster.de

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Reposted by Ana Santacruz
PLOS Biology @plosbiology.org · 30/09/2026
Mounting an #immune response is energetically costly, and so host defenses are often influenced by internal metabolic states. This study identifies a gut-brain signaling mechanism in C. elegans, shaping pathogen avoidance and molecular immune responses. 🧪 #AcademicSky #hostPathogen plos.io/3T9f6bi
Conceptual diagram for how NHR-68 integrates lipid metabolism with behavioral and molecular immunity.
NHR-68 acts in the intestine to regulate linoleic acid homeostasis through control of fat-3 expression. Changes in intestinal lipid metabolism influence an AWC-dependent pathogen-avoidance circuit through currently unidentified intestine-to-neuron signaling mechanisms, enhancing survival during P. aeruginosa infection. In parallel, NHR-68 suppresses PMK-1/p38 MAPK and DAF-16/FOXO immune pathways, coordinating behavioral and molecular defenses to optimize host protection. Created in BioRender. Sang, Y. (2026).
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Michael Hiller @hillermich.bsky.social · 23/09/2026
Happy to share results of the @bat1kgenomes.bsky.social phase 1, providing reference genomes covering 21 bat families. New insights into bat phylogeny, ancestral genome reconstruction, European origin & ancestral echolocation. Great work by a team of 100+ colleagues www.nature.com/articles/s41...
nature.com
Reference genomes and fossils revise bat family phylogeny and biogeography - Nature
An updated phylogeny of bats is presented, based on new genome assemblies and many ancient fossils and including all known bat families.
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Nico Schuck @nicoschuck.bsky.social · 21/09/2026
2023: 8,039 proposals 2024: 10,360 proposals 2025: 17,066 proposals 2026: 21,627 proposals Something's gotta give
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Proceedings of the National Academy of Sciences @pnas.org · 18/09/2026
How local is local adaptation? Researchers transplanted more than 700 lab-raised stickleback fish among lake and stream environments, finding that adaptation to specific sites can outweigh adaptation to broader habitat differences. In PNAS: ow.ly/yTOk50ZP97o
Two threespine stickleback fish. Image credit: Marius Roesti.
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Prosanta Chakrabarty @prosanta.bsky.social · 15/09/2026
Another big potential #FishJob Curator of Fishes (or Mammals, but let it be ichthyology) at the American Museum of Natural History careers.amnh.org/postings/4925
careers.amnh.org
Assistant Curator/Assistant Professor, Vertebrate Zoology
The Division of Vertebrate Zoology at the American Museum of Natural History (AMNH) seeks an outstanding tenure-track Assistant Curator/Assistant Professor in either the Department of Ichthyology or M...
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Mucosal Immunology @mucosalimmunol.bsky.social · 16/09/2026
MHC class II antigen presentation (visualized in red) by intestinal epithelial cells (visualized in the blue and white staining of the organoid) fine-tunes bacteria-reactive CD4 T-cell responses www.mucosalimmunology.org/article/S193...
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Hannah Owens @hannahoish.bsky.social · 04/09/2026
#FishADay Demogorgonichthys arcanus Demon Cave Fish. One cave system in northern Alabama. Eyeless; appears to have lost its vision following an evolutionary pathway separate from a close blind relative that is found in the same system! www.scientificamerican.com/article/newl...
scientificamerican.com
Newly discovered ‘demon cave fish’ hid out in Alabama military installation for 40 years
Scientists named this oddball creature after the Demogorgon from Stranger Things
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Tom Near @tjnear.bsky.social · 29/08/2026
1/11 🐟 2nd new preprint today from @chasedbrownstein.bsky.social We investigated how losing the swim bladder, the organ that most fishes use to control their buoyancy, has shaped the diversity of ray-finned fishes over 90 million years of Earth history. The results surprised us. 🧵
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Global Immunotalks @globalimmuno.bsky.social · 18/08/2026
Coming up!
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Max Planck Institute of Animal Behavior @mpi-animalbehav.bsky.social · 13/08/2026
How did cognition evolve? 🧠 On the sandy bottom of Lake Tanganyika, scientists asked wild fish how they make decisions, revealing how two closely related species diverge in surprising ways. Paper ▶️ www.pnas.org/doi/10.1073/... Story ▶️ www.ab.mpg.de/1452608/news...
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John P. Friel, Ph.D. @friel.bsky.social · 14/08/2026
Wake up babe! A new online resource for fish nerds just dropped. 🐟🧪 www.floridamuseum.ufl.edu/discover-fis...
floridamuseum.ufl.edu
Fish Families of the World Gallery
This searchable gallery includes entries for fish families of the world, which may include photographs of preserved specimens, reconstructed CT and photogrammetry 3D models, xrays, characteristics for...
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Maxwell Shafer @maxshafer.bsky.social · 14/08/2026
Do you have trouble sleeping when away from home or your partner and family? In our latest, we find that shells 🐚🏠 (homes) and conspecifics 🐟❤️ (family) control (or mask) circadian rhythms in shell dwelling cichlid fish: www.biorxiv.org/content/10.6...
static.klipy.com
Callipterus Cichlid Collecting Shell
Alt: Callipterus Cichlid Collecting Shell
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Windsor Aguirre @windsor-aguirre.bsky.social · 03/08/2026
In case you missed it, looks like a very interesting paper: Rare jackpot individuals drive rapid adaptation in Threespine Stickleback www.nature.com/articles/s41...
nature.com
Rare jackpot individuals drive rapid adaptation in Threespine Stickleback - Nature Communications
Recombination can speed up adaptation by bringing beneficial alleles together. However, this study shows rapid adaptation in Threespine Stickleback fish depends more on the initial frequency of allele...
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Craig Primmer @fishcongen.bsky.social · 29/06/2026
Thanks to a couple of recent Ws on the funding front, we have 3 open postdoc positions in Helsinki, Finland in the field of salmonid fish ecological and evolutionary genomics. DL 7.8. More details in advert: jobs.helsinki.fi/job/Helsinki...
Basic details of the amazing post doc positions on offer with amazing image of a large Teno River salmon in background
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Needhi Bhalla 💅🏽 @needhibhalla.bsky.social · 29/07/2026
From the abstract: “promoting a woman to Associate Professor increases female faculty by 1.5 members after 15 years, leads to six additional female PhD graduates over the following decade, and raises the number who subsequently remain in academia and reach tenured positions”
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Mucosal Immunology @mucosalimmunol.bsky.social · 27/07/2026
It’s #MucosalMonday and time for another MI Podcast episode, fresh from #ICMI2026. Hear from the poster sessions, and listen to Sing Sing Way @babiesresearch.bsky.social and Petter Brodin discuss the immune system during infancy. www.iheart.com/podcast/269-...
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EMBL Events @events.embl.org · 09/07/2026
Are you a PhD student or a postdoc taking your first steps in #metagenomics? Interested in understanding culture-independent omics techniques to study microbial communities? 🧪 Join us for 'Microbial metagenomics: a 360º approach' #EMBOMetaG Apply by 30 Nov: s.embl.org/met27-01-bl @embo.org
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Daniel Bolnick @danielbolnick.bsky.social · 26/06/2026
Second new preprint of the week: Postdocs Arshad Padhiar and Maria Rodgers and collaborators describe the morphology, cell content (scRNAseq), gene expression, histology of the stickleback intestine. We present a method for building #stickleback gut organoids www.biorxiv.org/content/10.6... /t
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MwahahahahahadScientist @mads100tist.bsky.social · 10/06/2026
Look, people. We have superb keynotes, we are giving prizes, we are giving postdocs a megaphone to tell everyone why they should be hired. This is the meeting to be at. Sign up, join us, and have the time of your life while discussing science with people that know where the cleithrum is🐟🧪
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Biozentrum, University of Basel @biozentrum.unibas.ch · 09/06/2026
In a new study, Prof. Anissa Kempf's team demonstrates in fruit flies that gut function is linked to feeding, sleep, and survival. Their work adds to growing evidence that the gut communicates with the brain and can influence behavior. 🧪@unibas.ch #ScienceAdvances @snsf.ch
biozentrum.unibas.ch
Sleeping instead of eating: How the gut influences behavior
Before newly hatched fruit flies feed for the first time, they need to empty their gut. But that’s not all: researchers led by Prof. Anissa Kempf at the Biozentrum have now discovered a surprising lin...
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Robert Kozol @cavefish.bsky.social · 04/06/2026
I am happy to announce that my penultimate post-doc paper (Erik Duboue lab/X) is finally out in Science Advances. This work stems from my first cavefish experiments, examining how dark-adapted cavefish larvae respond to changes in illumination. www.science.org/doi/10.1126/...
science.org
Evolution of a central dopamine circuit underlies adaptation of a light-evoked sensorimotor response in the blind cavefish
Evolution shifts dopamine neuron responses in cavefish, reversing how light drives their behavior.
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MwahahahahahadScientist @mads100tist.bsky.social · 01/06/2026
PRIZES for Posters PRIZES for Talks PRIZES for the best 'Postdoc to PI' Talk (register, folks. This is a great opportunity to tell us why fish are awesome and why you would be a great colleague and also show pretty pictures)🧪🐟
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Julia MI Barth @jmibarth.bsky.social · 27/05/2026
Not every #cichlid fish needs two parents! A Cyphotilapia frontosa female produced offspring in the absence of a male, with #genome-wide heterozygosity patterns consistent with self-fertilization. Amazing work by M. Efe Uysal with W. Salzburger and A. Marks Preprint: www.biorxiv.org/content/10.6...
Cyphotilapia frontosa drawing by Julie Johnson. Preprint: https://www.biorxiv.org/content/10.64898/2026.05.13.724898v1
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Cichlid Science 2026 @cichlidscience2026.bsky.social · 26/05/2026
Register here: www.uantwerpen.be/en/conferenc...
uantwerpen.be
Participate in Cichlid Science 2026 | Cichlid Science 2026 | University of Antwerp
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Britt Koskella @bkoskella.bsky.social · 19/05/2026
Please share widely! Abstract submissions open for the 2026 Jacques Monod conference: Ecology and evolution of host-parasite interactions in a changing world! Held in beautiful Roscoff France from November 2- 6, 2026. Abstracts submission deadline : June 6 cjm.sb-roscoff.fr/en/conferenc...
cjm.sb-roscoff.fr
Ecology and evolution of host-parasite interactions in a changing world | CNRS - Conférences Jacques Monod (CJM)
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International Society of Fish and Shellfish Immunology @isfsi.bsky.social · 19/05/2026
The #ISFSI in collaboration with #IUIS is delighted to announce the upcoming webinar by John F. Rawls: “The use of zebrafish as a powerful model for host microbiota interaction research and translational immunology” Free registration!! Just follow this link: immunohub.iuis.org/iuis/2026/we...
immunohub.iuis.org
Zebrafish as a high-throughput screening model with strong... by Faculty / Presenters
; Presenters F. May 21 2026; 4205690;
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Tschopp Lab @tschopplab.bsky.social · 14/05/2026
One of my dream projects, ever since joining here in Basel, out now in @nature.com : single-cells 🤝 eco-morphological proxies rdcu.be/fiyso How cells and tissues adapt to dietary niches... Thanks and congrats to Antoine, Walter, and all the other co-authors for this great collaboration!! 🙏🥳
rdcu.be
Adaptive cellular evolution in the intestine of hyperdiverse cichlid fishes
Nature - Single-cell transcriptomics combined with morphological and ecological data show that the rapid evolutionary radiation of cichlid fishes in Lake Tanganyika was accompanied by dietary...
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MwahahahahahadScientist @mads100tist.bsky.social · 14/05/2026
I'm very happy to announce that the "From Postdoc to PI Session" will be sponsored by the @biologists.bsky.social and we will be offering a $$ Prize to the best talk, so now a twofer reason to apply! www.germanfishmeeting.org/from-postoc-... Let me know if you have any question/s! 🐟
germanfishmeeting.org
From Postoc to PI Session | German Fish Meeting
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Global Immunotalks @globalimmuno.bsky.social · 13/05/2026
Looking forward to our next #globalimmuno talk this Wednesday, May 13th, at 9am PST, noon EST, 4pm GMT by Dr. Lucy Ochola. Title: “Unmasking the duality of Schistosoma in host immune modulation” ZOOM LINK: us06web.zoom.us/webinar/regi... LIVE ON YOUTUBE: www.youtube.com/@GLOBALIMMUNOTALKS
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Prosanta Chakrabarty @prosanta.bsky.social · 11/05/2026
Smithsonian Fish Curator position announcement! Note the application dates of May 12 – June 2, 2026. Should be posted here tomorrow: trustcareers.si.edu#js-careers-j...
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Ana Santacruz @anasaruz.bsky.social · 11/05/2026
Excited to receive support from @sse-evolution.bsky.social to support our outreach work in Mexican communities and teach evolution through the Mexican cavefish! 🐟✨
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Dr. Lauren E. Fuess @laurenfuess.bsky.social · 20/03/2026
Hi folks, there is a high likelihood I will be recruiting 1-2 PhD students to start in Spring 2027. Trying to get the word out early; please share broadly with your networks and encourage your students to reach out early. Info can be found on my webpage. fuesslab.wp.txstate.edu/opportunities/
fuesslab.wp.txstate.edu
opportunities – Symbiommunity Lab
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Dan 🐟 C @zebrafish007.bsky.social · 02/12/2025
Exciting new #Zebrafish research from the #WeinsteinLab, led by Jong Park! “Specialized gas-exchange endothelium of the zebrafish gill” — www.biorxiv.org/content/10.6... Amazing to see red blood cells moving through the gills! Don’t forget to check out the supplemental movies ;-)
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Mucosal Immunology @mucosalimmunol.bsky.social · 26/11/2025
Tissue resident colonic macrophages persist through acute inflammation and adapt to aid tissue repair in this work from @lizihegarty.bsky.social, @bainlab.bsky.social, and colleagues: www.mucosalimmunology.org/article/S193...
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Arica Beisaw @abeisaw.bsky.social · 22/11/2025
Come join us in Heidelberg for the first German fish meeting 👩‍🔬👨‍🔬🧬🔬🐟🐠
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Zebrafish Rock! @zebrafishrock.bsky.social · 09/11/2025
Fluorescent micrograph of the enteric nervous system of a Pachon/surface hybrid cavefish. Credit to @pavaniperera.bsky.social. #ZebrafishZunday 🧪
Side view of a cavefish embryo with several features of the intestine marked by different colors. Anterior to left.
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Ana Santacruz @anasaruz.bsky.social · 07/10/2025
apnews.com/article/nobe... Nobel Prize in medicine goes to 3 scientists for key immune system discoveries
apnews.com
The Nobel Prize in medicine goes to 3 scientists for key immune system discoveries
They won for their work on peripheral immune tolerance, which is one way the body helps keep the immune system from getting out of whack and attacking your own tissues..
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Global Immunotalks @globalimmuno.bsky.social · 06/10/2025
Looking forward to our next #globalimmuno talk this Wednesday, October 8th, at 9am PST, noon EST, 4pm GMT by Dr. Mauro Gaya. Title: “B cell memory in barrier tissues” ZOOM LINK: us06web.zoom.us/webinar/regi... LIVE ON YOUTUBE: www.youtube.com/@GLOBALIMMUNOTALKS
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Robert Kozol @cavefish.bsky.social · 03/10/2025
I am happy to report that the lab has its first preprint! We looked at odor perception in cavefish and found a strong attraction to ancestrally negative odors, including appetitive behavior and brain activity when smelling death! www.biorxiv.org/content/10.1...
biorxiv.org
The evolution of cavefish odor perception shifts fish response from avoidance to approach when exposed to alarm and death odors.
An animals survival is dependent on activating the correct behavioral circuit in response to a sensory stimulus. These stimuli include environmental odorants that evoke positive approach behavior and ...
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Tilly Mommersteeg @tillymommersteeg.bsky.social · 01/10/2025
More new work from the lab! @idrm.ox.ac.uk @oxforddpag.bsky.social Do all zebrafish regenerate their hearts equally? Also featuring the Mexican cavefish☺️ Thanks to all co-authors and especially the incredibly talented DPhil student Kostas Lekkos who drove the project. #zebrafish #heartregeneration
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Journal of Evolutionary Biology @jevbio.bsky.social · 02/10/2025
Ribeiro et al. studied #MHC class II variation and infection by a sexually transmitted bacterium (C34) in black-legged #kittiwakes. They found sex-specific links between MHC supertypes, bacterial load and reproduction, suggesting STIs may influence immune gene evolution: doi.org/10.1093/jeb/...
doi.org
An MHC class II supertype confers resistance to a sexually transmitted bacterium in females but not in males in a genetically monogamous seabird
Abstract. The major histocompatibility complex (MHC) is a gene cluster essential for pathogen recognition in jawed vertebrates. It encompasses the MHC clas
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The New Yorker @newyorker.com · 01/10/2025
The naturalist Jane Goodall died today at 91. Hope, she argued, is not merely “passive wishful thinking” but a “crucial survival trait.” Revisit a conversation with Goodall, from 2021: nyer.cm/F55JtsS
An image of Jane Goodall and a chimpanzee, from 1965. Photo courtesy CBS Photo Archive / Getty.
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Ana Santacruz @anasaruz.bsky.social · 01/10/2025
“We (humans) have been so jolly arrogant to think we’re so special.” www.washingtonpost.com/obituaries/2...
washingtonpost.com
Jane Goodall, primatologist and friend to chimpanzees, dies at 91
She used her global fame to draw attention to the plight of dwindling chimpanzee populations and, more broadly, to the perils of environmental destruction.
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Just Me - Yarn Sniffer @creative-flunky.bsky.social · 26/09/2025
This gorgeous being is thwaitesia argentiopunctata. Also known as the sequinned spider, mirror spider and is found in Australia. Absolutely beautiful! I am at a loss for words. #nature #arachnid #insect #mirrorspider #Australia
Beautiful mirror spider.from Australia.
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Ana Santacruz @anasaruz.bsky.social · 25/09/2025
Excited to start being part of the Postdoc Network Münster #PNM! @uni-muenster.de as a board member! A chance to give back to the community, and to the sometimes ‘grey’, neglected minority we postdocs are 💪✨
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Shefali @iamshef.bsky.social · 23/09/2025
#Behindthepaper stories: @accorsi-alice.bsky.social & @planaria1.bsky.social share how curiosity & passion driven research revealed that apple snails can regenerate full camera type eyes. @the-node.bsky.social @ucdavis.bsky.social @stowersinstitute.bsky.social #regeneration #applesnails #devbio
thenode.biologists.com
In the apple eye of evolution: Camera-type eye regeneration - the Node
Behind the paper stories from "A genetically tractable non-vertebrate system to study complete camera-type eye regeneration" We are all stepping into a
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PLOS Biology @plosbiology.org · 19/09/2025
How do your #linguistic, #economic & #gender backgrounds impact your #scientific productivity? @tatsuya-amano.bsky.social & co reveal that being a woman, a non-native English speaker, and from a low-income country is associated with a 70% reduction in productivity @plosbiology.org 🧪 plos.io/4n3RLRQ
Scientific productivity gap based on English-language peer-reviewed papers. Shown are the maximum % differences in the number of peer-reviewed papers published by female native English speakers from a high-income country (-45%), female non-native English speakers from a high-income country (-60%), and female non-native English speakers from a lower-middle income country (-70%), compared to male native English speakers from a high-income country (red flag). Credit: Tatsuya Amano
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Neil Shubin @neilshubin.bsky.social · 17/09/2025
Congrats to Aurelie Hinterman aurhin.bsky.social, Chase Bolt chasebolt.bsky.social, and Brent Hawkins @homeobox.bsky.social! Coverage in NYTimes by @carlzimmer.com: www.nytimes.com/2025/09/17/s...
nytimes.com
How Did Hands Evolve? The Answer Is Behind You.
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Ana Santacruz @anasaruz.bsky.social · 18/09/2025
Amazing work, my friend! @aurhin.bsky.social, always thinking outside the box!
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Ana Santacruz @anasaruz.bsky.social · 17/09/2025
Back from the Cavefish Retreat — amazing people, gorgeous location, great science, and a strong community! 🐟✨ The future looks bright for the #cavefish field!
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