Julia Espinosa
@jespinosa.bsky.social
1K followers 570 following 30 posts
Postdoc in comparative psychology, biology, & neuroscience @YorkU & @Harvard | Interested in individual differences and life experiences shaping canine social behaviour | #ManyDogs Founder & Co-Director | My job is just dog 🐶 | she/her/ella #LatinaInSTEM
Posts Media Videos Starter Packs
jespinosa.bsky.social
Absolutely. There is zero tolerance for inaccurate reporting and spreading falsehoods about dogs.
jespinosa.bsky.social
Here are our graphs showing impact of adversity by breed. We found zero evidence that pit-bull types were more impacted by adversity than other breeds, and when it came to baseline aggressive and fearful behaviour? Look at that, solidly in the middle of the pack #CanineScience 🧪 #Boom #TheEnd 4/4
Dumbbell graph showing the impact of early life adversity by individual breed on aggressive behaviour. Permutation testing and linear regression found that there were significant effects of early life adversity for some breeds, including American Eskimo Dog. You know which breed isn't impacted in our study? Pibbles. They're not even close to the most aggressive dog listed. So knock it off and let them be. Dumbbell graph showing the impact of early life adversity by individual breed on fearful behaviour. Permutation testing and linear regression found that there were significant effects of early life adversity for some breeds, including American Eskimo Dog. You know which breed isn't impacted in our study? Pibbles. They're not even close to the most aggressive dog listed. So, knock it off and let them be.
jespinosa.bsky.social
I really appreciate media coverage of our research, truly, it's huge for an #ECR like me on the job market. But don't get it twisted. The dogs don't deserve that #NotTodaySatan #DogIsLove #FactsNotFiction 3/n
jespinosa.bsky.social
Despite no good evidence, pit-bull types are frequently characterized as aggressive and dangerous. This false narrative contributes to breed-specific laws which cause relinquishments and euthanasia, and don't actually reduce serious dog bites in society 2/n #BreedSpecificLegislation #CanineScience
a black and white dog is looking at the camera with the words `` what '' written on it .
Alt: a black and white pitty looking dog is looking at the camera with the words `` what '' written on it.
media.tenor.com
jespinosa.bsky.social
You know what our recent paper on early life adversity and #dog #behaviour DOESN'T say? Anything about pit-bull type dogs. No mention by us at all, @sciencex.bsky.social. So... how did they earn a callout for aggression and fear in your piece? phys.org/news/2025-10... 1/idk, as many as it takes 🧪
Trauma in a puppy's first six months linked to adult aggression, says new study
As many dog owners can attest, their four-legged companions are delightful and loving. But for others, their animals have an aggressive side, such as biting and attacking strangers, which may ultimate...
phys.org
jespinosa.bsky.social
Thank you! I like it not least because it's called a dumbbell graph 🏋️😅🙌
jespinosa.bsky.social
That's not all! Obvi, nurture doesn't tell the whole story of why dogs develop certain behaviour. We also found that the impact of trauma varied across dog breeds, suggesting that there is a genetic factor for risk or resilience to stress.
#NatureAndNurture #Genes&Environment #IndividualDifferences
Barbell plot summarizing the difference in average aggressive behaviour scores (X axis) for two groups of dogs within the same breed (Y axis). Group 1 (blue dots) are average scores for dogs without a history of early life adversity and Group 2 (red dots) are average scores for dogs of the same breed with a history of early life adversity in the first 6 months. Generally, breeds show a trend towards higher aggression scores for dogs with a history of adversity (i.e., the red dot is to the right of the blue dot), while a few breeds show the opposite trend. None of the instances where dogs with adversity scored lower than those without were significantly different. Dot size represents the number of dogs in the group, with Golden Retrievers and Labrador Retrievers being among the most numerous, while English Shepherds were fewer. Significant differences in aggression scores between dogs with and without adversity are noted by carets next to breed names, including Siberian Husky, American Leopard Hound, and American Eskimo Dog.
jespinosa.bsky.social
📣 New publication alert! In a large, diverse sample, #CompanionDogs with a history of trauma before 6 months were seen as more fearful and/or aggressive than trauma-free dogs or those with trauma later on in life
🧪 #CanineScience #DogBehaviour #EarlyLifeAdversity doi.org/10.1038/s415...
Influence of early life adversity and breed on aggression and fear in dogs - Scientific Reports
Scientific Reports - Influence of early life adversity and breed on aggression and fear in dogs
doi.org
Reposted by Julia Espinosa
thomasserre.bsky.social
Brown’s Department of Cognitive & Psychological Sciences is hiring a tenure-track Assistant Professor, working in the area of AI and the Mind (start July 1, 2026). Apply by Nov 8, 2025 👉 apply.interfolio.com/173939

#AI #CognitiveScience #AcademicJobs #BrownUniversity
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
apply.interfolio.com
jespinosa.bsky.social
📣 Prospective Canadian grad students, check out NIna's lab and research szeyuhninawang.com 🧪
Reposted by Julia Espinosa
ianhussey.mmmdata.io
I wrote an R package that creates standardized R project structures that are compliant with @mekline.bsky.social's psych-DS...ish.

It also creates additional features for reproducibility and teaching like a readme, license, .gitignore and Quarto templates

+ can validate existing projects
Creating and validating standardized R project structures that are psych-DS compliant-ish
Making psychological code and data FAIR is hard, in part because different projects organize their code and data very differently. Sometimes this is for good reasons, such as due to the demands of a g...
mmmdata.io
jespinosa.bsky.social
Immediately going at the top of my reading list 🙌🤓
christinewebb.bsky.social
The argument of THE ARROGANT APE is that human exceptionalism—a.k.a. anthropocentrism or human supremacy—is at the root of the ecological crisis, giving humans a sense of dominion over Nature, entitled to commodify earth and other species for our own exclusive benefit.
Reposted by Julia Espinosa
asab-meetings.bsky.social
ICYMI : #ASABWinter2025 will take place from December 15-16, once again in lovely Edinburgh!

Registration is now open 🎉 Abstract submission deadline for posters and talks is August 29 🏃‍♀️🏃🏃‍♂️

More information here: asabwinter.github.io/2025/
Winter ASAB 2025 December 15-16 Edinburgh How sensory information affects behaviour.
Reposted by Julia Espinosa
oceanfilly.bsky.social
With many postdoc grants like the NSF PRFB, Ford Fellowship, and Hanna H. Gray fellowships disappearing, I am currently looking for grants that could fund incoming postdoctoral scholars. Here is a thread of some of them 🧵
jespinosa.bsky.social
ManyDogs has a new study! If you're a behavior researcher interested in collecting dog behavior data with your lab, get in touch 🙌🤓🐶 #BigTeamScience 🧪 #OpenScience #CanineScience #WomenInSTEM #dogs #teamworkmakesthedreamwork #AnimalBehavior #ComparativeCognition
manydogsproject.bsky.social
🚨 Calling all dog behavior & cognition researchers - ManyDogs Project is launching ManyDogs 2!

🔍🐕‍🦺We're studying overimitation: Do dogs copy irrelevant actions just b/c their favorite human does them?

Email [email protected] to collaborate globally and contribute to reproducible science!
A white and gray dog touches a yellow dot hanging on the wall with his nose. Text says ManyDogs 2 - Join the Team!
Reposted by Julia Espinosa
aidangcw.bsky.social
Pro tip, folks: if you make a figure for a publication, don’t just hand the copyright over to the publisher. Post it on OSF first and then give yourself permission to use it in the first publication and then all future publications. That way, no permissions issues.
Reposted by Julia Espinosa
ggnanadesikan.bsky.social
Up over 10,000 now! But we're aiming for 100,000! #StandUpForScience and join us.

actionnetwork.org/forms/add-na...
Reposted by Julia Espinosa
tomerullman.bsky.social
not sure how to get this across to non-academics but here goes,

Imagine if you were suddenly told 'we decided not to pay your salary', that's kind of what the grant cuts felt like.

Now imagine if you were suddenly told 'we are going to set your dog on fire', that's what this feels like:
jespinosa.bsky.social
Like other studies, we found individual differences also matter for dog behaviour! Older age, smaller body size, and living with other dogs or children were associated with increased aggression and fear scores. We also found that some breeds seemed to be more impacted by stress than others 😓🐶
Image of a young human with short brown hair with their arms wrapped tightly around the neck of a light yellow, medium coated dog with dark brown eyes.
jespinosa.bsky.social
A large sample of dog guardians (N = 4,497) shared life history and rated their dog's typical behavioural responses (with C-BARQ), e.g. when meeting an unfamiliar dog or human on a walk. We found that dogs with a history of adversity in the first 6 months were scored higher on fear and aggression
This is an infographic displaying information about the study design and participants that provided data. We asked about 7 specific types of adverse experiences that dogs could have experienced in their lifetime, including: being abandoned or living without a guardian in a shelter, physical abuse, being attacked by a dog/animal, being severely frightened by a human, suffering a physical injury, experiencing corrective punishments, and tethering outdoors for long periods of time. The right half of the figure includes a pie-chart and an icon of a person walking a dog on a leash and lists basic sample information. The total sample of dogs and guardians numbered 4,497 and included data from 211 distinct breeds (i.e., 52.3% of the sample). The mean age of dogs was 5.43 years and 44% of the total sample were female. Approximately 30% of single breed dogs were reported as experiencing adversity, while 36% of multiple/mixed breed dogs experienced adversity. Only responses that were concrete and specific were included, if guardians indicated that they were in anyway uncertain about the nature of the event or when it occured, they were not included in the "early life adversity" cohort.
jespinosa.bsky.social
Pre-print alert📣 Interesting associations between guardian-reported early life adversity and problematic #behaviour in #dogs: doi.org/10.31234/osf... Along with Erin Hecht and colleagues, we found that adverse event timing, genetic ancestry, and environmental factors matter for dog behaviour 🐶🧪
The figure shows a 2-panel point-line graph of the mean C-BARQ scores for Aggression (left) and Fear (right) behaviour scales. Within each panel, data for 2 groups of dogs is summarized: mean scores those that have experienced early life adversity and those that have not. The Y axis indicates the mean score for on a 5-point rating scale with 95% confidence intervals around the mean. The X axis identifies the cohorts, Adversity = has a history of adversity in the first 6 months; No adversity = no adversity in the first 6 months. For both aggression and fear scores, dogs that have experienced adverse events in the first 6 months score significantly higher than those without early life adversity.
jespinosa.bsky.social
Oh I'm so glad you're here now! 🥰