Male and female sparrow with nesting materials, sitting in a rural habitat.

#sexdifferences

What did we find?

Clear division of labour emerged:

♀ Females invested more in incubation and provisioning
♂ Males contributed more to guarding

🏙️ Urban effect:
• Females increased effort across behaviours
• Male effort showed little change

4/6

Brain-wide neuron quantification toolkit reveals strong sexual dimorphism in the evolution of fear memory Fear responses are functionally adaptive behaviors that are strengthened as memories. Indeed, detailed knowledge of the neural circuitry modulating fe…

Did you know that posttraumatic stress disorder is roughly twice as prevalent in women compared to men and that fear memories are stored in sex-biased networks, which may explain these differences? #sabv #ossd #sexdifferences #humanhealth #ptsd #fear #learningandmemory

The authors call for sex‑aware dosing, trial design and toxicity reporting, so women are not quietly paying a higher price for the same therapies. Data like this should change practice, not just headlines. #Oncology #SexDifferences #TCSC

Sex dependency of subconscious visual perception - Biology of Sex Differences Males are more susceptible to neurodevelopmental cognitive deficits in their perception of visual information. Subliminally-presented visual stimuli might be subconsciously perceived and consequently ...

Did you know that a super quick flash of an image can still sway your decisions? Men seem to be influenced by these cues even more than women! #sabv #ossd #sexdifferences #humanhealth link.springer.com/article/10.1...

🗓️Save the date! The EMBO-EMBL Symposium, ‘Sex differences in health and disease’, will take place this April.
⏰ Registration deadline is 16th March (on-site) and 23rd April (virtual). The FEBS Journal has already registered, for further details👉 buff.ly/LtlhCp8

#EMBLevents #sexdifferences #disease

🌟 Check out this #featuredarticle ➡️ "Androgen Signaling in ILC2s Drives Sex Differences in Helicobacter-induced Gastric Inflammation and Atrophy"
🔗 https://ow.ly/BbFz50Ykp25
🏷️ #SexDifferences #GutHealth

Sex-specific gonadal transcriptome during early development of Siberian sturgeon - Biology of Sex Differences Background Sex determination and differentiation are complex processes shaped by a wide variety of molecular factors. In contrast to teleost species, many aspects of these processes remain poorly unde...

Did you know? 🐟 By just 2.5 months old, Siberian sturgeon show sex-specific gene activity in their gonads: Females light up estrogen-response genes, while males activate new testis candidates, even without male hormone genes in play! #sabv #ossd #sexdifferences link.springer.com/article/10.1...

@fuhlig.bsky.social @jfcryan.bsky.social @uccresearch.bsky.social, @bvalderrama.bsky.social @crosellcardona.bsky.social
#EarlyLifeNutrition #SexDifferences #Prebiotics #Probiotics #Bifidobacterium

@natcomms.nature.com @anatneuroucc.bsky.social @pharmacologyucc.bsky.social

@childrensnational.bsky.social

@crohnscolitisfdn.bsky.social

#CCCongress2026 #CCCongress26 #CCC2026 #CCC26 #SexDifferences #SexInScience #SoulDog #HeartDog #Bellagio #YearOfTheHorse #Wellness #WellBeing

🧵3/5

...approaches for pediatric #Crohns disease!!

I also enjoyed sharing information about the newly launched
@childrensnational.bsky.social
#GrowthProgram (childrensnational.org/get-care/dep...) !!

#CCCongress2026 #CCCongress26 #SexDifferences #SexInScience #Bellagio #YearOfTheHorse

🧵2/5

I especially enjoyed the Monitoring Inflammation & Emerging Therapeutic Approaches for Pediatric IBD sessions!! It was a pleasure presenting the #GrowthStudy & discussing the need for the development of sex-specific risk-based therapeutic...

#SexDifferences #SexInScience

🚨 Only 6 of 29 studies on #cannabis’ acute cognitive effects found #sex differences! New #review highlights gaps: small samples, poor sex/gender measurement, and no inclusion of trans/gender-diverse participants 🧠 #CannabisResearch #SexDifferences
https://ow.ly/7Tzi50Yh71A

Simulated trait distributions for two groups with different shapes. Top left: distinct skewness. Top right: distinct kurtosis. Bottom: different correlations between two traits for two groups.

Differences between M & F are pervasive, but we often focus on #SexDifferences in the mean. @pietropollo.bsky.social @danielwanoble.bsky.social @itchyshin.bsky.social &co present #stats tools that allow comparison of #skewness, #kurtosis & correlations b'n groups @plosbiology.org 🧪 plos.io/4093nJs

Simulated trait distributions for two groups with different shapes. Top left: distinct skewness. Top right: distinct kurtosis. Bottom: different correlations between two traits for two groups.

Differences between M & F are pervasive, but we often focus on #SexDifferences in the mean. @pietropollo.bsky.social @danielwanoble.bsky.social @itchyshin.bsky.social &co present #stats tools that allow comparison of #skewness, #kurtosis & correlations b'n groups @plosbiology.org 🧪 plos.io/4093nJs

Simulated trait distributions for two groups with different shapes. Top left: distinct skewness. Top right: distinct kurtosis. Bottom: different correlations between two traits for two groups.

Differences between M & F are pervasive, but we often focus on #SexDifferences in the mean. @pietropollo.bsky.social @danielwanoble.bsky.social @itchyshin.bsky.social &co present #stats tools that allow comparison of #skewness, #kurtosis & correlations b'n groups @plosbiology.org 🧪 plos.io/4093nJs

Throwing like a girl: a critique of past approaches and an illustrated proposal for a path forward - Biology of Sex Differences Background The phrase “Throwing like a girl” persists in popular culture and in scientific research as a trope about biological differences between males and females. In this review/theoretical paper ...

Did you know? “Throwing like a girl” isn’t biology. Fausto-Sterling found that infants who start ball play earlier (often boys) practice from stable positions and throw farther sooner. Timing and practice, not sex, shape throwing skill. #SABV #OSSD #sexdifferences
link.springer.com/article/10.1...

Sex differences in brain volume emerge before birth, groundbreaking research suggests Researchers have created a detailed model of perinatal brain growth, revealing how white and gray matter trajectories shift during gestation. The study also identifies early sex-based differences in brain structure.

Sex differences in brain volume emerge before birth, groundbreaking research suggests #Science #Biology #Neurobiology #BrainResearch #SexDifferences #Neurodevelopment

www.psypost.org/sex-differences-in-brain...

Biological sex influences how blood markers reflect Alzheimer’s severity A promising Alzheimer’s blood test requires different interpretation for men and women, according to a new study. Researchers found that at identical protein levels, men experience more severe cognitive decline and brain damage than their female counterparts.

Biological sex influences how blood markers reflect Alzheimer’s severity #Science #HealthandMedicine #Neurology #AlzheimersDisease #NeurologyResearch #SexDifferences

www.psypost.org/biological-sex-influence...

Male and Female Brains Start Developing Differently in the Womb, Scientists Find Researchers mapped early brain growth from mid-pregnancy to the first month after birth and found signs that sex-linked differences emerge surprisingly early.

Male and Female Brains Start Developing Differently in the Womb, Scientists Find #Science #Biology #Neurobiology #BrainDevelopment #SexDifferences #Neuroscience

scitechdaily.com/male-and-female-brains-s...

High estrogen levels in brain may increase women’s risk of stress-related memory issues – BioNews Central Brain estrogen levels, along with differences in estrogen receptors between men and women, help explain why women are more likely to develop post-traumatic stress disorder and face a higher risk of dementia later in life. ...

#Brain #estrogen levels, along with differences in #EstrogenReceptors between men and women, help explain why women are more likely to develop #PostTraumaticStressDisorder and face a higher risk of #Dementia later in life.
#MemoryProblems #SexDifferences #BrainHealth

Sex differences in noradrenergic regulation of the medial prefrontal cortex in mice - Biology of Sex Differences Background Norepinephrine (noradrenaline; NE) is a stress signal released from the locus coeruleus (LC) into the prefrontal cortex (PFC) to govern arousal, attention, and cognition. The LC is sexually...

Did you know female brains have stronger norepinephrine projections from locus coeruleus to prefrontal cortex? BUT prefrontal neurons are less sensitive to signaling than in males! This study found sex differences in this stress and decision-making circuitry. #sabv #ossd #sexdifferences #humanhealth

Sex steroids and sex chromosome linked immune response #genes have major roles in driving these differences,but the cells & signaling pathways governing these are disease specific & often not known. Such knowledge is required to better understand #sexdifferences in disease incidence &

Establishment of sex-specific liver transcriptomes and H3K9me3 profiles during sexual maturity: the impact of maternal obesity - Biology of Sex Differences Background The escalating prevalence of metabolic dysfunction-associated steatotic liver disease (MASLD) is closely linked to rising obesity rates. Maternal obesity (MO) is associated with increased s...

A mother's diet can leave lasting epigenetic fingerprints on her offspring's liver, altering how genes are expressed, long after the young eat healthy again. These changes can disrupt metabolism sex-specifically, potentially raising lifelong risk for fatty liver disease. #sabv #ossd #sexdifferences

Sex and Seasonal Variations in Melatonin Suppression and Alerting Response to Light Abstract. Light influences human physiology and behavior by regulating circadian rhythms, melatonin secretion, and alertness. Previous research has reporte

Sex and Seasonal Variations in Melatonin Suppression and Alerting Response to Light. Read more in #JES: bit.ly/45YENOD #SexDifferences #DimLightMelatoninOnset #LightSensitivity @endocrinesociety.bsky.social

Impact of continuous testosterone exposure on reproductive physiology, activity, and pain-related behavior in young adult female rats Testosterone may reduce pain in cisgender women and transgender men. Rodents can provide a useful model for investigating physiological effects of hor…

Giving female rats testosterone at male-like levels helped them bounce back faster after surgery, but it didn't actually make them experience less pain. Testosterone boosted recovery, not pain resistance! #sabv #ossd #sexdifferences #humanhealth www.sciencedirect.com/science/arti...

In ZFDM rats, only males develop type 2 diabetes. This study shows that estradiol suppresses diabetes onset and shifts pancreatic islet gene expression toward a non-diabetic state.
Yokoi et al. 2026 DOI: 10.1538/expanim.25-0122
#Type2Diabetes #SexDifferences #Islets

Exciting postdoc opportunity in theoretical biology, working on sex differences in immunity as part of a new interdisciplinary consortium. Deadline is at the end of February, so there's still time to apply! #academicjobs #postdoc #theoreticalbiology #immunity #sexdifferences #lifehistorytheory

Biological sex matters in brain aging Every cell in the body has a biological sex. The expansion of aging research to investigate female- and male-specific biology heralds a major advance …

Did you know that every cell in your body has a biological sex? Exploring how male and female cells age differently is opening the door to new ways of diagnosing and treating brain aging. #sabv #ossd #sexdifferences #humanhealth

www.sciencedirect.com/science/arti...

Excited to announce Session A7 – The Battle of #Sexes: Comparative #Biology of #Females and #Males at the @sebiology.bsky.social Annual Conference 2026, co-organized with @pierocalosi.bsky.social

Join us to explore sex-specific biology across systems!
#SEB2026 #ComparativeBiology #SexDifferences

Job Alert

Postdoctoral Researcher in Sex-Biased Cancer Development

Deadline: 2026-01-27 
Location: Germany - Heidelberg

🚀 www.academiceurope.com/ads/postdoct...

#hiring #Postdoc #CancerResearch #Genomics #RegulatoryGenomics #SexDifferences #LifeSciences