Paddy Tkaczynski
@paddytkaczynski.bsky.social
Behavioural ecologist at LJMU, UK. Studying how non-human primates grow up, how they make friends & their plasticity to the goings on of human primates (https://plasticprimateslab.com/)
Reposted by Paddy Tkaczynski
The 0.5.0 version of my {brms} + {tidyverse} translation of McElreath's "Statistical Rethinking" (2nd ed) is up!
solomon.quarto.pub/sr2/
1/3
#rstats
solomon.quarto.pub/sr2/
1/3
#rstats
Statistical rethinking 2 with rstan and the tidyverse
solomon.quarto.pub
January 14, 2026 at 3:08 PM
The 0.5.0 version of my {brms} + {tidyverse} translation of McElreath's "Statistical Rethinking" (2nd ed) is up!
solomon.quarto.pub/sr2/
1/3
#rstats
solomon.quarto.pub/sr2/
1/3
#rstats
Reposted by Paddy Tkaczynski
How many cooperatively breeding bird & mammal species are there??? an ongoing research... follow @co-breed.bsky.social for updates!
1/4 To celebrate our 120th follower, we introduce the “cooperative breeding gauge”: measuring the % of cooperatively breeding species in Co-BreeD. It now presents the very initial % of cooperatively from our 1st published Co-BreeD dataset besjournals.onlinelibrary.wiley.com/doi/full/10....
January 12, 2026 at 7:43 AM
How many cooperatively breeding bird & mammal species are there??? an ongoing research... follow @co-breed.bsky.social for updates!
Reposted by Paddy Tkaczynski
𝗛𝘂𝗺𝗯𝗼𝗹𝗱𝘁 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗼𝗿𝘀𝗵𝗶𝗽 – 𝗜𝗻𝗳𝗼 𝗦𝗲𝘀𝘀𝗶𝗼𝗻
For outstanding researchers from abroad who want to establish their research activities at a German institution – while continuing their position in their country of origin.
Join us on January 13th to find out more about the programme: bit.ly/4988BL0
For outstanding researchers from abroad who want to establish their research activities at a German institution – while continuing their position in their country of origin.
Join us on January 13th to find out more about the programme: bit.ly/4988BL0
January 9, 2026 at 11:14 AM
𝗛𝘂𝗺𝗯𝗼𝗹𝗱𝘁 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗼𝗿𝘀𝗵𝗶𝗽 – 𝗜𝗻𝗳𝗼 𝗦𝗲𝘀𝘀𝗶𝗼𝗻
For outstanding researchers from abroad who want to establish their research activities at a German institution – while continuing their position in their country of origin.
Join us on January 13th to find out more about the programme: bit.ly/4988BL0
For outstanding researchers from abroad who want to establish their research activities at a German institution – while continuing their position in their country of origin.
Join us on January 13th to find out more about the programme: bit.ly/4988BL0
Reposted by Paddy Tkaczynski
Statistical Rethinking 2026 Lecture B01 Multilevel Models is online. This is the first lecture of the "experienced" section, in which we start with multilevel models and venture into vast covariance spaces. Full lecture list still here: github.com/rmcelreath/s...
Statistical Rethinking 2026 - Lecture B01 - Multilevel Models
YouTube video by Richard McElreath
www.youtube.com
January 9, 2026 at 10:34 AM
Statistical Rethinking 2026 Lecture B01 Multilevel Models is online. This is the first lecture of the "experienced" section, in which we start with multilevel models and venture into vast covariance spaces. Full lecture list still here: github.com/rmcelreath/s...
Reposted by Paddy Tkaczynski
New publications for a happy new year 2026!
@maelmleroux.bsky.social and colleagues published a new framework for #welfare, #EDI and #ethics in animal research.
Find out more here: A call for CARE!
www.sciencedirect.com/science/arti...
1/3
@maelmleroux.bsky.social and colleagues published a new framework for #welfare, #EDI and #ethics in animal research.
Find out more here: A call for CARE!
www.sciencedirect.com/science/arti...
1/3
A call for CARE in animal behaviour: an holistic ethical research framework
Despite increasing awareness of animal welfare, there are vast discrepancies between legal protections and recommended practices for different species…
www.sciencedirect.com
January 9, 2026 at 9:47 AM
New publications for a happy new year 2026!
@maelmleroux.bsky.social and colleagues published a new framework for #welfare, #EDI and #ethics in animal research.
Find out more here: A call for CARE!
www.sciencedirect.com/science/arti...
1/3
@maelmleroux.bsky.social and colleagues published a new framework for #welfare, #EDI and #ethics in animal research.
Find out more here: A call for CARE!
www.sciencedirect.com/science/arti...
1/3
Reposted by Paddy Tkaczynski
L'Iran a coupé Internet / L'accès à Internet est totalement coupé, et le service mobile est également devenu quasiment inexistant
January 9, 2026 at 10:31 AM
L'Iran a coupé Internet / L'accès à Internet est totalement coupé, et le service mobile est également devenu quasiment inexistant
Reposted by Paddy Tkaczynski
The University of Vienna awards at least 20 four-year and full-time (40h/week) postdoctoral positions to outstanding female scientists in natural sciences, life sciences, and economics.
🚨 Postdoctoral Opportunity for Female Scientists🚨
The University of Vienna is awarding at least 20 fully funded 4 year postdoctoral positions to outstanding female scientists
Interested? Get in touch via direct message
careers.univie.ac.at/en/postdoc/e...
#MicroSky 🧪
#PostDoc @univie.ac.at
The University of Vienna is awarding at least 20 fully funded 4 year postdoctoral positions to outstanding female scientists
Interested? Get in touch via direct message
careers.univie.ac.at/en/postdoc/e...
#MicroSky 🧪
#PostDoc @univie.ac.at
January 5, 2026 at 5:13 PM
The University of Vienna awards at least 20 four-year and full-time (40h/week) postdoctoral positions to outstanding female scientists in natural sciences, life sciences, and economics.
Reposted by Paddy Tkaczynski
The Palestine hunger strikers have been on hunger strike for over 60 days and are close to death.
They have not even been convicted of a crime - they are being held on remand (pre-trial) for more than twice the max time allowed, and counting…🧵
They have not even been convicted of a crime - they are being held on remand (pre-trial) for more than twice the max time allowed, and counting…🧵
January 8, 2026 at 3:30 PM
The Palestine hunger strikers have been on hunger strike for over 60 days and are close to death.
They have not even been convicted of a crime - they are being held on remand (pre-trial) for more than twice the max time allowed, and counting…🧵
They have not even been convicted of a crime - they are being held on remand (pre-trial) for more than twice the max time allowed, and counting…🧵
Reposted by Paddy Tkaczynski
UCL Evolutionary Anthropology seminars starting up again for the new term every Tuesday pm. Anthropology Dept. 14 Taviton St. DFL 3.30-5pm followed by 🍷. All welcome.
www.ucl.ac.uk/social-histo...
www.ucl.ac.uk/social-histo...
Evolutionary Anthropology seminars
Exploring the evolutionary roots of human behaviour, biology, and culture through interdisciplinary research and debate.
www.ucl.ac.uk
January 9, 2026 at 10:23 AM
UCL Evolutionary Anthropology seminars starting up again for the new term every Tuesday pm. Anthropology Dept. 14 Taviton St. DFL 3.30-5pm followed by 🍷. All welcome.
www.ucl.ac.uk/social-histo...
www.ucl.ac.uk/social-histo...
Reposted by Paddy Tkaczynski
🦴🔬 773,000-year-old #fossils from Morocco illuminate the shared ancestry of H. sapiens, Neandertals & Denisovans. Study @nature.com by an intl. team led by J.-J. Hublin, incl. @matthewskinnerphd.bsky.social & P. Gunz @mpi-eva-leipzig.bsky.social. tinyurl.com/yxz4kcff & www.nature.com/articles/s41...
Early hominins from Morocco reveal an African lineage near the root of Homo sapiens
Study pinpoints 773,000-year-old fossils with high-resolution magnetostratigraphic dating, illuminating the shared ancestry of Homo sapiens, Neandertals, and Denisovans
tinyurl.com
January 7, 2026 at 4:04 PM
🦴🔬 773,000-year-old #fossils from Morocco illuminate the shared ancestry of H. sapiens, Neandertals & Denisovans. Study @nature.com by an intl. team led by J.-J. Hublin, incl. @matthewskinnerphd.bsky.social & P. Gunz @mpi-eva-leipzig.bsky.social. tinyurl.com/yxz4kcff & www.nature.com/articles/s41...
Reposted by Paddy Tkaczynski
Finally out! We studied the retinas of the longest-living vertebrate, the Greenland shark, and found that the retinas remain remarkably healthy in animals around 150 years old. What is the mechanism? It may be a highly efficient DNA repair system. Enjoy!
www.nature.com/articles/s41...
www.nature.com/articles/s41...
January 6, 2026 at 1:40 AM
Finally out! We studied the retinas of the longest-living vertebrate, the Greenland shark, and found that the retinas remain remarkably healthy in animals around 150 years old. What is the mechanism? It may be a highly efficient DNA repair system. Enjoy!
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Paddy Tkaczynski
I'm teaching Statistical Rethinking again starting Jan 2026. This time with live lectures, divided into Beginner and Experienced sections. Will be a lot more work for me, but I hope much better for students.
I will record lectures & all will be found at this link: github.com/rmcelreath/s...
I will record lectures & all will be found at this link: github.com/rmcelreath/s...
December 9, 2025 at 1:58 PM
I'm teaching Statistical Rethinking again starting Jan 2026. This time with live lectures, divided into Beginner and Experienced sections. Will be a lot more work for me, but I hope much better for students.
I will record lectures & all will be found at this link: github.com/rmcelreath/s...
I will record lectures & all will be found at this link: github.com/rmcelreath/s...
Reposted by Paddy Tkaczynski
Sub-Saharan Africa has lost almost one-quarter of its pre-industrial biodiversity. To map the biodiversity of sub-Saharan Africa, 200 specialists in African plants and animals were asked to estimate local species abundances. www.nature.com/articles/d41...
Sub-Saharan Africa has lost almost one-quarter of its pre-industrial biodiversity
Biodiversity loss in sub-Saharan Africa has been estimated using the expertise of 200 local specialists.
www.nature.com
January 5, 2026 at 4:28 AM
Sub-Saharan Africa has lost almost one-quarter of its pre-industrial biodiversity. To map the biodiversity of sub-Saharan Africa, 200 specialists in African plants and animals were asked to estimate local species abundances. www.nature.com/articles/d41...
Reposted by Paddy Tkaczynski
Have you been too busy to read our recent paper on orangutans' culturally-dependent diets? 😔 Never fear, we have published a two-page research briefing to give you a quick overview of our paper's aims, findings, and implications! 🤩 Check it out here: www.nature.com/articles/s41...
January 5, 2026 at 11:11 AM
Have you been too busy to read our recent paper on orangutans' culturally-dependent diets? 😔 Never fear, we have published a two-page research briefing to give you a quick overview of our paper's aims, findings, and implications! 🤩 Check it out here: www.nature.com/articles/s41...
Reposted by Paddy Tkaczynski
My first PhD paper is published! 🎉 We compared how wild bonobo and chimpanzee infants (0-5.5y) become independent from their mothers. Here is the open-access link: onlinelibrary.wiley.com/doi/epdf/10....
🧵(1/5)
🧵(1/5)
Great Ape Childhoods: Social and Spatial Pathways to Independence in Bonobo and Chimpanzee Infants
onlinelibrary.wiley.com
December 16, 2025 at 12:19 PM
My first PhD paper is published! 🎉 We compared how wild bonobo and chimpanzee infants (0-5.5y) become independent from their mothers. Here is the open-access link: onlinelibrary.wiley.com/doi/epdf/10....
🧵(1/5)
🧵(1/5)
Reposted by Paddy Tkaczynski
There is still time to submit your abstract and apply for a travel award!
@behavecol.bsky.social @isbe2026.bsky.social
@behavecol.bsky.social @isbe2026.bsky.social
December 15, 2025 at 11:03 PM
There is still time to submit your abstract and apply for a travel award!
@behavecol.bsky.social @isbe2026.bsky.social
@behavecol.bsky.social @isbe2026.bsky.social
Reposted by Paddy Tkaczynski
We're looking for a new colleague at Asssoc Prof level! Come join us in the Zoology Department at Stockholm University. A teaching profile in ecology, faunistics and/or physiology is beneficial. Find the full job advertisemnt here: su.varbi.com/en/what:job/...
Associate Professor in Zoology with focus on ecology and evolution
Department of Zoology at Stockholm University includes ca. 80 employees counting researchers, PhD students, and administrative staff. Research and education at the department occurs in an internatio
su.varbi.com
December 15, 2025 at 11:12 AM
We're looking for a new colleague at Asssoc Prof level! Come join us in the Zoology Department at Stockholm University. A teaching profile in ecology, faunistics and/or physiology is beneficial. Find the full job advertisemnt here: su.varbi.com/en/what:job/...
Reposted by Paddy Tkaczynski
Migration Advisory Committee report on fiscal impact of main work migration routes.
Key table: they estimate 2022/23 cohort (those arriving in 2022/23) will over lifetimes pay about £47 billion more in taxes than they "cost" in public spending.
assets.publishing.service.gov.uk/media/693810...
Key table: they estimate 2022/23 cohort (those arriving in 2022/23) will over lifetimes pay about £47 billion more in taxes than they "cost" in public spending.
assets.publishing.service.gov.uk/media/693810...
December 11, 2025 at 1:38 PM
Migration Advisory Committee report on fiscal impact of main work migration routes.
Key table: they estimate 2022/23 cohort (those arriving in 2022/23) will over lifetimes pay about £47 billion more in taxes than they "cost" in public spending.
assets.publishing.service.gov.uk/media/693810...
Key table: they estimate 2022/23 cohort (those arriving in 2022/23) will over lifetimes pay about £47 billion more in taxes than they "cost" in public spending.
assets.publishing.service.gov.uk/media/693810...
Reposted by Paddy Tkaczynski
New preprint out on "Goats who stare at wolves - identifying natural response stimuli for an affect-driven attention bias test in small ruminants"!
Apparently, snakes might be the new wolves!
www.biorxiv.org/content/10.6...
Apparently, snakes might be the new wolves!
www.biorxiv.org/content/10.6...
Goats who stare at wolves - identifying natural response stimuli for an affect-driven attention bias test in small ruminants
Reliable and non-invasive assessment of affective states is crucial in animal welfare research. Linking affective states to cognitive processes, such as cognitive biases, provides a promising approach...
www.biorxiv.org
December 9, 2025 at 8:35 AM
New preprint out on "Goats who stare at wolves - identifying natural response stimuli for an affect-driven attention bias test in small ruminants"!
Apparently, snakes might be the new wolves!
www.biorxiv.org/content/10.6...
Apparently, snakes might be the new wolves!
www.biorxiv.org/content/10.6...
Reposted by Paddy Tkaczynski
More evidence of the benefits of lottery elements in funding.
'The new procedure required applicants to submit only an expression of interest...before 500 were selected, via lottery, to submit a full proposal for peer review....the number of female applicants increased 10 per cent, while the number of funded projects by women rose by 23 per cent.' 2/2
Lottery before peer review is associated with increased female representation and reduced estimated economic cost in a German funding line - Nature Communications
The authors show evidence from a German funding line that a lottery-first approach followed by peer review is accompanied by increased female representation both at the submission stage and among fund...
www.nature.com
December 9, 2025 at 9:19 AM
More evidence of the benefits of lottery elements in funding.
Reposted by Paddy Tkaczynski
New paper out today in Ecology and Evolution! Link below. Congrats PhD student @smthmpsn.bsky.social, on your first paper. All about how wild birds learn to avoid a novel aposematic warning signal. And a nice nod to Britney Spears in the paper title.
December 4, 2025 at 2:56 PM
New paper out today in Ecology and Evolution! Link below. Congrats PhD student @smthmpsn.bsky.social, on your first paper. All about how wild birds learn to avoid a novel aposematic warning signal. And a nice nod to Britney Spears in the paper title.
Reposted by Paddy Tkaczynski
This is a good summary of many of my concerns about LLMs invading the education space. Chief among my concerns - cognitive engagement is critical for learning, but LLMs take that away, just leaving the generated product, which avoids the whole purpose of our course material and assignments
If you have only one thing to read today...
"Universities are being retrofitted as fulfillment centers of cognitive convenience."
www.currentaffairs.org/news/ai-is-d...
"Universities are being retrofitted as fulfillment centers of cognitive convenience."
www.currentaffairs.org/news/ai-is-d...
AI is Destroying the University and Learning Itself
Students use AI to write papers, professors use AI to grade them, degrees become meaningless, and tech companies make fortunes. Welcome to the death of higher education.
www.currentaffairs.org
December 5, 2025 at 1:42 AM
This is a good summary of many of my concerns about LLMs invading the education space. Chief among my concerns - cognitive engagement is critical for learning, but LLMs take that away, just leaving the generated product, which avoids the whole purpose of our course material and assignments
Reposted by Paddy Tkaczynski
New PhD position available! For applicants keen to combine evolutionary ecology, neuroscience and animal cognition. Based at UCL with me, @maxreuter.bsky.social, @fcamus.bsky.social and Tamara Boto (Bristol). Directly funded, see here for details and eligibility: www.findaphd.com/phds/project...
How Memory Evolves: Integrating Cognitive Ecology, Neuroscience, and Experimental Evolution in Drosophila at University College London on FindAPhD.com
PhD Project - How Memory Evolves: Integrating Cognitive Ecology, Neuroscience, and Experimental Evolution in Drosophila at University College London, listed on FindAPhD.com
www.findaphd.com
December 4, 2025 at 3:10 PM
New PhD position available! For applicants keen to combine evolutionary ecology, neuroscience and animal cognition. Based at UCL with me, @maxreuter.bsky.social, @fcamus.bsky.social and Tamara Boto (Bristol). Directly funded, see here for details and eligibility: www.findaphd.com/phds/project...
Reposted by Paddy Tkaczynski
So impressed with this software! Check it out!
FERAL goes wild:
🦓 Drone footage of Grevy’s zebras (with @blaircostelloe.bsky.social, Ben Koger and @icouzin.bsky.social)
Pose-estimation pipelines struggled to detect vigilance behavior from overhead drone videos.
FERAL identifies vigilance bouts directly from video.
🦓 Drone footage of Grevy’s zebras (with @blaircostelloe.bsky.social, Ben Koger and @icouzin.bsky.social)
Pose-estimation pipelines struggled to detect vigilance behavior from overhead drone videos.
FERAL identifies vigilance bouts directly from video.
November 19, 2025 at 8:32 PM
So impressed with this software! Check it out!
Reposted by Paddy Tkaczynski
🔔 New paper out on Social evaluation of skill and competence in primates
@mariehirel.bsky.social, @williamohearn.bsky.social and @julxf.bsky.social made this happen
www.sciencedirect.com/science/arti...
@mariehirel.bsky.social, @williamohearn.bsky.social and @julxf.bsky.social made this happen
www.sciencedirect.com/science/arti...
Social evaluation of skill and competence in primates
Social life is a continuous interplay of observing and interacting with conspecifics, predicting their behavior, and responding to their actions. This…
www.sciencedirect.com
August 24, 2025 at 6:40 PM
🔔 New paper out on Social evaluation of skill and competence in primates
@mariehirel.bsky.social, @williamohearn.bsky.social and @julxf.bsky.social made this happen
www.sciencedirect.com/science/arti...
@mariehirel.bsky.social, @williamohearn.bsky.social and @julxf.bsky.social made this happen
www.sciencedirect.com/science/arti...