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Catherine Williams

@cjaw.bsky.social
775 followers 2.3K following 81 posts

Vet, Assistant Prof, Artist, Mum. Comparative physiologist with interests in anaesthesia, analgesia ❤️ 🫁 🧠 and bone. Currently studying these in the context of 🐔 keel bone fracture.

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Reposted by Catherine Williams
Journal of Experimental Biology @jexpbiol.bsky.social · 09/09/2026
Early-career researchers can apply for a FUNDED PLACE at the @biologists.bsky.social Workshop, Integrating Physiology and Behaviour in Assessment of Ectotherm Heat Tolerance, 7-10 March 2027 Organisers: Michael Ørsted and Johannes Overgaard Application deadline: FRIDAY 11 Sept tinyurl.com/23rm6z69
Graphic saying: Workshop
Integrating Physiology and Behaviour in Assessment of Ectotherm Heat Tolerance 
Organisers: Michael Ørsted and Johannes Overgaard
Early-career researchers apply for funded places
7-1- March 2027
Buxted Park, East Sussex, UK
Bottom left: The Company of Biologists logo
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Catherine Williams @cjaw.bsky.social · 24/07/2026
#Sciart on the nature cover from Richard Tibbets @natureportfolio.nature.com
A scientific illustration of a beetle by Richard Tinbetts on the cover of Nature
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Catherine Williams @cjaw.bsky.social · 09/07/2026
@europexn.bsky.social Sketches of the speakers from todays @sebiology.bsky.social Florence meeting thanks for the great talks!
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Catherine Williams @cjaw.bsky.social · 23/06/2026
#SciFAW100 Huw Golledge kicks off the conference, in London dealing with the centinary of the university federation of animal welfare - which is now Science for Animal Welfare. #welfare #sciart
A sketch of Huw Golledge from Science for Animal Welfare kicking off the UFAW conference
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Reposted by Catherine Williams
Quanta Magazine @quantamagazine.org · 16/05/2026
The retina is one of the most energetically expensive tissues known to science. And yet, birds’ retinas manage without a key energy-saving tool: oxygen. New research explores how.
quantamagazine.org
How the Bird Eye Was Pushed to an Evolutionary Extreme | Quanta Magazine
The bird retina is one of the most energetically expensive tissues in the animal kingdom, yet it doesn’t use the energy advantage of oxygen. New research finally explains how this is possible.
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Reposted by Catherine Williams
Quanta Magazine @quantamagazine.org · 27/05/2026
“Evolution is not really like an inventor; it acts more like a tinkerer. . . . It takes parts that have existed long before, and it recombines, reinvents, and reshapes.”— Karthik Shekhar, biologist at UC Berkeley
quantamagazine.org
How the Bird Eye Was Pushed to an Evolutionary Extreme | Quanta Magazine
The bird retina is one of the most energetically expensive tissues in the animal kingdom, yet it doesn’t use the energy advantage of oxygen. New research finally explains how this is possible.
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Catherine Williams @cjaw.bsky.social · 02/06/2026
Gecko hearts (here the ventricle) can regenerate! Proud to have been part of this @vickaryouslab.bsky.social study led by Kathy, which looked at function: ultrasound for all and pressure volume loops at final time point, and structure: histology, and transcription over 100d after cryo injury
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Reposted by Catherine Williams
Guo Huang Lab @UCSF #Recruiting postdocs @guohuanglab.bsky.social · 16/04/2026
We know many fish and amphibians can regenerate the heart. How about reptiles? A landmark paper from @vickaryouslab.bsky.social to fill this gap. Glad to be a part of this study. @isrbio.bsky.social @evodevopanam.bsky.social @socdevbio.bsky.social www.nature.com/articles/s41...
nature.com
Heart ventricle regeneration in the lizard Eublepharis macularius, the leopard gecko - npj Regenerative Medicine
npj Regenerative Medicine - Heart ventricle regeneration in the lizard Eublepharis macularius, the leopard gecko
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Catherine Williams @cjaw.bsky.social · 02/03/2026
What is the primary stress hormone in the axolotl? Well turns out they do both cortisol (like fish) and cortocosterone (like most amphibians). And use them under different stressor and with different dynamics. Paper #blusci #axolotl rdcu.be/e6pzr
rdcu.be
The adrenal stress response involves distinct dynamics of both cortisol and corticosterone in the axolotl salamander
Lab Animal - This study examines adrenal stress responses and injury signals in axolotl, showing that corticosterone dominates after amputation, while cortisol, which rises with handling stress, is...
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Catherine Williams @cjaw.bsky.social · 21/01/2026
Bird's eye view: How do birds' inner retinae work engergetically if they don't have pre-retinal blood vessels? What does the pecten do? If some of these words/concepts sound interesting to you - read www.nature.com/articles/s41... Led by Christian Damsgaard & others @au.dk & beyond #BlueSci #SciArt
A digital drawing made from an oil painting by the poster, showing pigeons taking off. The eyes of two birds one on the ground, one in flight, are highlighted. The paper discusses the function of the bird eye - with its inner retina able to sustain high metabolism in anoxia, thanks partially to the action of the pecten - a structure suspended in the back chamber of the eye
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Catherine Williams @cjaw.bsky.social · 15/12/2025
#ArtAdventCalenday days 13,14,15 #SciArt cross over, sketches of chickens who I study to look at the the condition of keel bone fracture, which occurs very commonly in laying hens in husbandry (~80%). We are looking at the acute consequences to breathing, activity and the potential for pain @au.dk
A sketch of a white laying hen from the sideA sketch of a hen pecking the ground. She wears a research backpack made from a baby gro.A sketch of a watchfull white laying hen.
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Catherine Williams @cjaw.bsky.social · 12/12/2025
#ArtAdventCalendar day 12 a running irish wolfhound in linoprint
A black ink linocut of a dog running, specifically an irish wolfhound.
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Catherine Williams @cjaw.bsky.social · 11/12/2025
#ArtAdventCalendar day 11, a puppy Lino print on watercolpur paper
Lino print of a labrador puppy in black on a white card
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Catherine Williams @cjaw.bsky.social · 09/12/2025
#ArtAdventCalendar Day 9, the leaping hare, with a nod to #TerryPrachett s 'the hare runs into the fire'
The surface of a lino print with an incised hare in white, the lines in black and the background a grey from the last print
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Catherine Williams @cjaw.bsky.social · 06/12/2025
#ArtAdventCalendar day 6. The bull's head
A lino cet print of a bull's head in black
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Catherine Williams @cjaw.bsky.social · 05/12/2025
#ArtAdventCalendar day 5: Cow and calf
A linocut print of a cow's head reaching down to sniff a newborn calf
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Catherine Williams @cjaw.bsky.social · 04/12/2025
#ArtAdventCalendar day 4, a Puffin.
A linocut print of a puffin
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Catherine Williams @cjaw.bsky.social · 03/12/2025
#ArtAdventCalendar Day 3, the December cat
A lino print in black of a cat curled up.
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Catherine Williams @cjaw.bsky.social · 02/12/2025
#ArtAdventCalendar. Day 2 Chickens in the rain.
A small watercolour sketch of two wet chickens with rain splatting the paint.
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Catherine Williams @cjaw.bsky.social · 01/12/2025
#ArtAdventCalendar
Two lino prints of a runner duck witha a curl in its tail and a stocky chicken.
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Catherine Williams @cjaw.bsky.social · 26/11/2025
Stiff and different - Lizard osteoderm papers from a collaboration with @henrikbirkedal.bsky.social's group led by Adrian. We show a capping tissue from Heloderma that is enamel-like in mechanical properties but highly disordered in crystal pattern doi.org/10.1016/j.ac... doi.org/10.1002/adfm...
A microCT of a Heloderma osteroderm paired with xray diffraction and xray  fluorescence data showing the superficial capping tissue and underlying transition zone and bone.
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Catherine Williams @cjaw.bsky.social · 14/09/2025
What is #IUPS2025 ? - the conference bringing physiologists from across the world,with @physoc.bsky.social , SPS and DPG, - The 2 Nobel prize lectures, on low oxygen and high resolution respectively from Peter Radcliffe and Stefan Hell. 🔬
Peter Radcliffe discussing hypoxia sensing, oxygen from history, publishing and future perspectives Stefan Hell discussing limits and non limits to light microscopy
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Catherine Williams @cjaw.bsky.social · 05/06/2025
6 (!!!!) tenure track or Associate Prof jobs across fields in #veterinary medicine at my current workplace @au.dk Denmark. Come join! Deadline August details in link.... anivet.au.dk/en/about-the... #Blusci #VetSci
anivet.au.dk
Tenure track assistant professor/Associate professors positions in veterinary medicine - Vacancy at Aarhus University
Vacancy at Department of Animal and Veterinary Sciences, Aarhus University
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Reposted by Catherine Williams
Journal of Experimental Biology @jexpbiol.bsky.social · 06/05/2025
If you're a new PI within 5 years of your first faculty position, here are two fantastic grants to help develop your research: the Kickstart Travel Grant and ECR Visiting Fellowships Find out more at biologists.com/grants/#jeb The next application deadline is 6 June Please repost
Social media postcard that says: Are you an early-career researcher within five years of your first appointment to a faculty position? You could be eligible for our new grants for junior faculty staff

The Journal of Experimental Biology logo is in the bottom left corner. The Kickstart grant logo, two hands shaking, is in the bottom right corner.
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Reposted by Catherine Williams
Journal of Experimental Biology @jexpbiol.bsky.social · 28/04/2025
If you're a new PI within 5 years of your first faculty position, here are two fantastic grants to help develop your research: the Kickstart Travel Grant & ECR Visiting Fellowships Find out more at biologists.com/grants/#jeb The next application deadline is 6 June Please repost to spread the word
Social media postcard that says: Are you an early-career researcher within five years of your first appointment to a faculty position? You could be eligible for our new grants for junior faculty staff

The Journal of Experimental Biology logo is in the bottom left corner. The Kickstart grant logo, two hands shaking, is in the bottom right corner.
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Catherine Williams @cjaw.bsky.social · 16/04/2025
Fun game
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Reposted by Catherine Williams
Skype a Scientist @skypeascientist.bsky.social · 26/02/2025
Hi! We're Skype a Scientist! We're a free program that matches scientists with classrooms, scout troops, libraries, & other groups for Q&As all about science. Get matched with a scientist for a virtual conversation! We have 30+ types of scientist & match weekly. www.skypeascientist.com/sign-up.html
A blue infographic gives a step by step guide on how to Skype a scientist. The steps are: 1) sign up on skypeascientist.com 2) pick a category of science your group would like to talk about (e.g. marine biology, chemistry, astronomy) 3) get a match via email 4) connect with your scientist, discuss your ur group’s needs and pick a time to chat 5) talk to your scientist!
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Reposted by Catherine Williams
Vincent Arel-Bundock @vincentab.bsky.social · 10/04/2025
📚😅🎉 Yay!! I just submitted the complete manuscript of my upcoming book to the publisher! Learn to easily and clearly interpret (almost) any stats model w/ R or Python. Simple ideas, consistent workflow, powerful tools, detailed case studies. Read it for free @ marginaleffects.com #RStats #PyData
Model to Meaning: How to interpret statistical models with marginaleffects for R and Python
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Catherine Williams @cjaw.bsky.social · 08/04/2025
@markscherz.bsky.social talking miniaturisation in 🐸 🦎 🐦 and mammals, in terms of the potential for evolutionary novelty as well as constraints... to the Zoophysiology Friday seminar @au.dk #Frog #Sciart from his @erc.europa.eu funded project
Sketch of a scientist and two frogs... one much bigger than the other. And notes on cell number vs cell size, with the latter constrained by genome size and the former potentially by organ functionThe same scientist and this time a tiny frog (Mini mum?) Facing forwards and walking in a way favoured by the very smallThe physical limits of miniaturisation?
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Reposted by Catherine Williams
Max-Planck-Gesellschaft @maxplanck.de · 01/04/2025
🚀 Apply now 🚀 The new Max Planck #Postdoc Program offers a guaranteed contract of at least 3 years, targeted mentoring, and career workshops. postdocprogram.mpg.de #ScienceCareer #PostdocProgram
Early-career reseachers at one of our Max Planck Institutes.
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Reposted by Catherine Williams
AU Bioacoustics @bioacousticsau.bsky.social · 02/04/2025
📢Exciting news 1: We just launched our new Center for Active Sensing with Sound 🎧🥳 📢Exciting news 2: We are looking for 2 new PhD students 👩‍🎓👨‍🎓 in “Echolocation in bats🦇 and toothed whales 🐬” – read more here:
phd.nat.au.dk
Echolocation in bats and toothed whales
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Catherine Williams @cjaw.bsky.social · 01/04/2025
This was an excellent 🐕 session @anatomyorg.bsky.social covering canine behaviour and brains, stress and welfare and anatomy of the African wild dog. 3 brilliant talks by Profs Erin Hecht, Ana Jimenez and @heatherfsmith.bsky.social.
Erin Hecht summarising work on behaviour and brains over canine evolution from wolf ancestors, commensal dogs and domestic dogs accross breeds.Ana Jimenez on oxidative stress /reactive oxygen species and stress in dogs. The relationship of lifespan and ROS in dogs over size ranges and between wolves, dogs and wolf-dogs.Heather Smith presenting work on muscles of facial expression, mastication and running in the African wild dog.
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Reposted by Catherine Williams
The Anatomical Record @anatrecord.bsky.social · 31/03/2025
Many thanks to the excellent speakers in our joint sponsored journal master class on the integumentary system with @devdynamics.bsky.social & @asejournal.bsky.social at @anatomyorg.bsky.social #Anatomy2025! #anatomy25
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Catherine Williams @cjaw.bsky.social · 01/04/2025
Pleasure to speak in this session (sketches of speakers- thanks to Sam Payne for doing me). Talking lizard 🦎 osteoderms: work @hfspo.bsky.social @maxivlaboratory.bsky.social from a large group including @mmoazen.bsky.social @henrikbirkedal.bsky.social- thank you @anatrecord.bsky.social for invite!
A sketch of me by Sam Payne talking lizard osteoderms especially their capping tissue. From work in Matt Vickaryous' lab at Guelph and in collaboration with many international authors, most recently Henrik Birkedal's lab at Aarhus as well as an HSFP funded group led by Mehran Moazen at UCL. Highlighted papers included those led by Loïc Kèver, Arsalan Marghoub, Anastasiia Maliuk, and unpublished work led by Adrian Roderiguez Palamo and Gabriella Willan.Sketches of session chair Jessica Dennis and introducing editor Jason OrganMasterful overview of skin development, anatomy and histology by Prof Tamara Franz-OdendaalTechnological revelations from Prof Paul Dalton covering materials for basic research, clinical use and animal use replacement in research: electrowriting structures to mimic skin from basement membrane to superficial layers and dermis
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Catherine Williams @cjaw.bsky.social · 01/04/2025
Greatly appreciated the plenary speech by @carlzimmer.com @anatomyorg.bsky.social drawing on material from 'she has her mother's laugh' to discuss Anatomy and its relationship to heredity, its history, mis use and the necessity of communicating current science.
A sketch of Carl Zimmer delivering a plenary speech for the American Association of Anatomists, drawing on material on heredity, on the history of modern (18th-21st centuary) anatomy, including its mis use in eugenics and the necessity of confronting this history and communicating current science.
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Catherine Williams @cjaw.bsky.social · 12/03/2025
Sketches from the @aiasdk.bsky.social workshop on cellular plasticity at the crossroads of ❤️ and 🧠 aias.au.dk/events/cellu... #BlueSci #SciArt
A sketch of me discussing the heart of the leopard gecko and its response to cryo injuryChristian Damsgaard on the avian eyeLeif Ostergaard on capillary responses to neuronal activity Tobias Wang on the plasticity of the snake intestine.... and the cost of protein synthesis
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Aarhus Institute of Advanced Studies (AIAS) @aiasdk.bsky.social · 08/03/2025
‪🩺 ✏️ 🧫 ⚖️Happy International Women's Day. 30 curious & clever women scientists are hosted in the #diverse community of AIAS. They put their intellect & skills into research in evolutionary biology, labour economics, cardiovascular disease & much more for the benefit of us all🙏 🎨by @cjaw.bsky.social
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Aarhus Institute of Advanced Studies (AIAS) @aiasdk.bsky.social · 28/02/2025
Interested in cell plasticity? JOIN the interdisciplinary meeting on an underexplored area: the circulatory & nervous systems w/great potential in treating age-related diseases 📆7 March at 9-16:00 🔗https://aias.au.dk/events/cellular-plasticity-at-the-crossroads-of-the-nervous-and-circulatory-systems
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Aarhus Institute of Advanced Studies (AIAS) @aiasdk.bsky.social · 20/02/2025
Fellowship opportunity at AIAS. The Artist-in-Residence Tandem Fellowship invites an artist from any discipline to team up with an @au.dk researcher on a research project. 📆APPLY by: 18 March 2025 at 12.00 (noon) CET. 🔗https://aias.au.dk/opportunities-at-aias/artist-in-residence-tandem-fellowship
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Catherine Williams @cjaw.bsky.social · 28/02/2025
Going to be talking about the 🦎 ❤️ - regenerating lizard hearts - at this meeting @aiasdk.bsky.social, presenting work led by Kathy Jacyniak at Guelph, please have a look at the fantastic talks that are on the program after mine, on 🐦, 🐍, humans, mice and others. #BluSci
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Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 26/02/2025
Classroom/Library enrollment was down pretty bad in February. National chaos and uncertainly likely has something to do with it. Can you help me make sure that all the educators on bluesky know Skype a Scientist exists and is ready to connect them with scientists? Every RT helps! #EduSky #STEMEd
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Catherine Williams @cjaw.bsky.social · 11/02/2025
#VetSci a #PhD in Denmark @au.dk on a potential novel treatment for mastitis in 🐄. on barn on site physiology, on farm comparison with standard treatment. Epidemiology, physiology, welfare and bacteriology all possible avenues for exploration. See and apply phd.tech.au.dk/for-applican...
phd.tech.au.dk
Novel treatment for mastitis in cattle – experimental and on-farm study of low-level laser technology
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Catherine Williams @cjaw.bsky.social · 03/02/2025
What 🐎 parasites are there? What have we done historically & presently to 'treat' them as vets, what resistance to anti-parasite drugs are we now seeing? What can we do differently in the future... seminar @ AU from Prof Martin Nielsen #VetSci 🧪 #Parasitology 🐡 doi.org/10.1016/j.vetpar.2011.10.012
A sketch from a talk by Professor Martin Krarup Nielsen on equine parasitology, the normality of parasites, talking about what anti-helmintic (anti-worm) drugs have been previously used in horses, the development of resistance, and the importance of control mechanisms that do not depend on drugs.
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Catherine Williams @cjaw.bsky.social · 14/01/2025
@lbejder1971.bsky.social at @aiasdk.bsky.social seminar - Humpback 🐋: how their migration & body condition score is studied, what this can tell us about population, calf size & how this affected by changes to the climate. Can charismatic mammals be used to bring about human change? #Sciart #Blusci
Sketch of Prof Lars Bejder giving the seminar of the week on body condition scores (how much blubber) of humpback whales on their migrations back and forth from Hawa'i (giving birth) to Alaska (feeding), and how this feeds into numbers and size of whales born. Also the cross over with other organisms (e.g. krill), methods (e.g. drone measurements and non invasive tags and samples, and how we as humans think about both whales and the general environment.
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Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 09/01/2025
Artists, I have some questions for you. Let's say, hypothetically, there was a science conference coming to your city, all about animals. The scientists are looking for artists to come to the meeting, sit in on the talks, & live-Illustrate what you learn about. This would be paid. My questions...
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Catherine Williams @cjaw.bsky.social · 27/11/2024
Now this is a very good reason indeed to be on Bluesky #Bluesci
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Julian Winn @winn-on-health.bsky.social · 26/11/2024
Who can help Dr Dykes with information and connections? #OnlyConnect #SixDegreesOfSeparation #Community
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Andreas Nord @cyanistesnord.bsky.social · 10/10/2024
The second biannual (!) Lund thermal biology symposium will take place at Lund University, Sweden, 25 to 27 November this year. Top-notch invited speakers covering tree of life, and wide range of contributed talks over 3 days. Join us by following the link 👇Please re-post. shorturl.at/WF0XI
shorturl.at
Changing animals in a changing world 25–27 November 2024
Lund University.
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Catherine Williams @cjaw.bsky.social · 19/11/2024
Back in September, I was one of 36 new fellows @aiasdk.bsky.social, I drew the other 35's 3min speed talks, and the resulting sketches have just gone in virtual display at the website: aias.au.dk/events/3-min.... Since, I have tried to sketch the Fellows presentations when I've been in the room 🐡
A sketch of Andrei Kalinichev presenting his work on the use of colour as chemical information, here for use in soil science
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Catherine Williams @cjaw.bsky.social · 18/11/2024
If you see this, post your bird art 🐡
A pen and ink sketch of two overlapping broiler chickens. Made for a PhD covet of a friend looking at gait scoring and welfare.Pen and ink sketch of chicken foot prints
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