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Richard Bribiescas

@rbribiescas.bsky.social
304 followers 114 following 76 posts

Evolutionary Anthro professor @ Yale, PRS guitar addict, human evolutionary biology, hormones, reproduction, aging, author “How Men Age”

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Richard Bribiescas @rbribiescas.bsky.social · 08/06/2026
Estrogenic activity in tampon products academic.oup.com/jes/article/...
academic.oup.com
Estrogenic activity in tampon products
Abstract. Tampons are widely used menstrual products with prolonged mucosal contact, raising questions about their potential role in exposing females to en
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Richard Bribiescas @rbribiescas.bsky.social · 22/05/2026
Nice Proc B article on climate change and weight gain in owl monkeys by Yale bioanthro PhD student Jonathan Pertile. 👍 @jonathanpertile.bsky.social news.yale.edu/2026/05/20/w...
news.yale.edu
Warmer temps, heavier owl monkeys: Climate linked to weight gain in primates
A Yale-led study finds that Azara’s owl monkeys have gotten heavier as temperatures rise — a result that defies long-standing expectations about how animals adapt to warm climates.
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Yale Reproductive Ecology Lab @yalereproeco.bsky.social · 29/04/2026
Congratulations YREL and Yale Anthropology PhD alum Dr. Dorsa Amir on her 2026 APS Spence Award by the Association for Psychological Science @dorsaamir.bsky.social bsky.app/profile/psyc...
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Yale Reproductive Ecology Lab @yalereproeco.bsky.social · 28/04/2026
news.yale.edu/2026/04/28/m...
news.yale.edu
Modern lifestyles affect how the gut microbiome processes estrogen
Industrialized lifestyles — and feeding infants with formula — are changing the gut microbiome in ways that significantly increase estrogen recycling, potentially affecting people’s health, a new Yale...
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Richard Bribiescas @rbribiescas.bsky.social · 19/04/2026
Navigating Practical, Political, and Ethical Challenges of Long‐Term Human Biology Field Research: The Shuar Health and Life History Project - Snodgrass - 2026 - American Journal of Human Biology - Wiley Online Library onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Navigating Practical, Political, and Ethical Challenges of Long‐Term Human Biology Field Research: The Shuar Health and Life History Project
Major advances in understanding human biology and health have been made possible by long-term field research projects with Indigenous peoples, whose ecological settings and lifeways are distinct from...
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Grazyna Jasienska @grazynajasienska.bsky.social · 17/04/2026
Our new paper in PNAS. Gut microbes can recycle estrogens. Industrialized populations have greater microbial capacity for estrogen recycling than nonindustrialized populations. www.pnas.org/doi/10.1073/...
pnas.org
Industrialization increases the estrogen-recycling capacity of the gut microbiome | PNAS
Estrogens influence many aspects of human physiology and health, including fertility, growth, metabolic function, and susceptibility to disease. Up...
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Richard Bribiescas @rbribiescas.bsky.social · 17/04/2026
Read Industrialized populations show greater capacity for estrogen recycling by gut microbes on Kudos: www.growkudos.com/publications... @yalereproeco.bsky.social @grazynajasienska.bsky.social
growkudos.com
Industrialized populations show greater capacity for estrogen recycling by gut microbes
The human gut microbiome includes bacteria that can influence how hormones are processed in the body. One important function is the recycling of estrogens: instead of being fully excreted, some estrog...
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Association for Psychological Science @psychscience.bsky.social · 14/04/2026
Meet @dorsaamir.bsky.social, director of the Mind & Culture Lab at Duke University & 2026 APS Spence Award recipient! #Psychology Learn about her research, her career, & her advice for the upcoming generation of psychological scientists: www.psychologicalscience.org/publications...
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Yale Reproductive Ecology Lab @yalereproeco.bsky.social · 13/04/2026
Industrialization increases the estrogen-recycling capacity of the gut microbiome | PNAS www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Richard Bribiescas @rbribiescas.bsky.social · 05/04/2026
Nurturing Bonds: A Qualitative Exploration of Breastfeeding and Responsive Feeding Practices in Samoan Mother‐Infants Dyads - Victoria - 2026 - American Journal of Human Biology - Wiley Online Library onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Nurturing Bonds: A Qualitative Exploration of Breastfeeding and Responsive Feeding Practices in Samoan Mother‐Infants Dyads
Introduction Little is known about whether perceptions in Samoa of human milk composition and quality play a role in the decline in exclusive breastfeeding with age, the introduction of solid foods,...
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Richard Bribiescas @rbribiescas.bsky.social · 27/03/2026
Reproductive Ecology and Evolutionary Anthropology: Foundations, Unanswered Questions, and Future Directions - Bribiescas - 2026 - American Journal of Human Biology - Wiley Online Library onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Reproductive Ecology and Evolutionary Anthropology: Foundations, Unanswered Questions, and Future Directions
The research field of reproductive ecology continues to be a major contributor to the scientific advancement of evolutionary anthropology and human biology in general. Primary contributions to human ...
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Richard Bribiescas @rbribiescas.bsky.social · 08/03/2026
Market Integration and Reproductive Transitions Among Indigenous Shuar and Neighboring Nonindigenous Ecuadorians in Amazonian Ecuador - Madimenos - 2026 - American Journal of Human Biology - Wiley Online Library onlinelibrary.wiley.com/doi/abs/10.1... @yalereproeco.bsky.social
onlinelibrary.wiley.com
Market Integration and Reproductive Transitions Among Indigenous Shuar and Neighboring Nonindigenous Ecuadorians in Amazonian Ecuador
Objective Global reproductive transitions are well documented, yet less is known about how neighboring populations with divergent histories and exposure to market integration (MI) experience them. T...
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Richard Bribiescas @rbribiescas.bsky.social · 09/01/2026
Reproductive and metabolic hormone associations in adult Samoan males with and without obesity url: academic.oup.com/emph/article... @yalereproeco.bsky.social
academic.oup.com
Reproductive and metabolic hormone associations in adult Samoan males with and without obesity
Implications Obesity has potentially negative effects on male reproductive hormone function in Samoa. While the effects on male fertility remain unclear, f
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Richard Bribiescas @rbribiescas.bsky.social · 02/11/2025
Salivary Testosterone, Age, and Adiposity Associations Among Shuar Males in Amazonian Ecuador Challenge Assumptions of “Normal” Testosterone Patterns - Gildner - 2025 - American Journal of Human Biology - Wiley Online Library onlinelibrary.wiley.com/doi/abs/10.1...
onlinelibrary.wiley.com
Salivary Testosterone, Age, and Adiposity Associations Among Shuar Males in Amazonian Ecuador Challenge Assumptions of “Normal” Testosterone Patterns
Objectives Adult male testosterone concentrations in high income countries often decrease with age and adiposity, a pattern typically viewed as “normal.” However, testosterone is expected to be adap.....
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Carolyn Bertozzi @carolynbertozzi.bskyverified.social · 22/05/2025
Stay strong @harvard.edu
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The Human Biology Association @humbioassociation.bsky.social · 21/05/2025
📚 Call for Nominations: HBA Book Award 📚 Know a book that’s made a major impact on human biology? Nominations are now open for the 2026 Human Biology Association Book Award! This award recognizes outstanding contributions to our field—advancing theory, methods, practice, or teaching.
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Grazyna Jasienska @grazynajasienska.bsky.social · 15/05/2025
I will be looking for a PhD student for a project on sleep quality and reproductive hormones in women. szkoladoktorska.cm-uj.krakow.pl/pl/how-to-ap... Join our great team in Krakow. evoecogroup.wordpress.com/grazyna-jasi...
szkoladoktorska.cm-uj.krakow.pl
Szkoła Doktorska Nauk Medycznych i Nauk o Zdrowiu
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Alondra Nelson @alondra.bsky.social · 13/05/2025
"For me, the answer now lies in refusal, the withdrawal of participation from systems that require dishonesty as the price of belonging." Today I am resigning from the National Science Board and the Library of Congress Scholars Council. I wrote about my decision in TIME. time.com/7285045/resi...
time.com
Why I’m Resigning from the NSF and Library of Congress
I cannot participate in systems that require dishonesty as the price of belonging.
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Kim Weeden @weedenkim.bsky.social · 07/05/2025
One of grants frozen at Cornell: $6.7M (4 yrs) to develop heart pumps for babies born w/ heart defects. It took decades of work to get to point of prepping device for in-human clinical trials. No private company could do this. The cruelty of the Trump administration is heartbreaking. So to speak.
news.cornell.edu
Research at risk: Life-saving heart pumps for babies | Cornell Chronicle
After receiving a stop-work order from the federal government, the future of a device to help children with heart defects is uncertain.
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Carl Quintanilla @carlquintanilla.bsky.social · 05/05/2025
Page One must have been crowded. So NYT puts it on Page 13. 🤡 @schooley.bsky.social
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Rep. Jamie Raskin @raskin.house.gov · 04/05/2025
"I do solemnly swear that I will faithfully execute the Office of President of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States."
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Richard Bribiescas @rbribiescas.bsky.social · 30/04/2025
Congratulations!🍾 Richly deserved!!
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Richard Bribiescas @rbribiescas.bsky.social · 19/04/2025
📢 Folks. It’s not “underrepresented”, it is “historically excluded”. There is a big difference. One can just happen. The latter more accurately describes the active systemic efforts that keep some out of science and academia. 📢
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Wil Wheaton ❌👑 @wilwheaton.net · 19/04/2025
Maybe we should honor the women who were real astronauts. From left to right are Shannon W. Lucid, Margaret Rhea Seddon, Kathryn D. Sullivan, Judith A. Resnik, Anna L. Fisher, and Sally K. Ride. NASA selected all six women as their first female astronaut candidates in January 1978.
From left to right are Shannon W. Lucid, Margaret Rhea Seddon, Kathryn D. Sullivan, Judith A. Resnik, Anna L. Fisher, and Sally K. Ride. NASA selected all six women as their first female astronaut candidates in January 1978.
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James Holland Jones @juemos.bsky.social · 19/04/2025
Nice to see an old friend actually standing up to the insanity. Kudos to John and the MacArthur Foundation. www.theguardian.com/us-news/2025...
theguardian.com
US philanthropists warn against capitulating to Trump: ‘We need to step up’
Foundation leaders say charitable organisations could be next in the firing line – but must ‘stand together’ to resist
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Jason Kamilar @jasonkamilar.bsky.social · 18/04/2025
Ranking Member Lofgren Urges NSF to Ignore Inflammatory Cruz Report, Releases Democratic Staff Report in Rebuttal democrats-science.house.gov/news/press-r...
democrats-science.house.gov
Ranking Member Lofgren Urges NSF to Ignore Inflammatory Cruz Report, Releases Democratic Staff Report in Rebuttal | House Committee on Science, Space and Technology
The House Committee on Science, Space and Technology
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Richard Bribiescas @rbribiescas.bsky.social · 18/04/2025
University faculty are not powerless. Explore, identify, discuss and share opportunities for leverage.
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yearbookbioanth.bsky.social @yearbookbioanth.bsky.social · 17/04/2025
Dr. Lynnette Sievert - a short video summary of her Yearbook pub, ""Evolutionary Perspectives, Comparative Approaches, and the Lived Experience of Menopause." youtu.be/dm3IDoDyWPw
youtu.be
Sievert 2024
YouTube video by Yearbook of Biological Anthropology
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The Washington Post @washingtonpost.com · 16/04/2025
Thirty-eight of 43 experts cut last month from the boards that review the science and research that happens in laboratories at the National Institutes of Health are female, Black or Hispanic, according to an analysis by the chairs of a dozen of the boards.
washingtonpost.com
Women, minorities fired in purge of NIH science review boards
Scientists, with expertise in fields that include mental health, cancer and infectious disease, typically serve five-year terms and were not given a reason for their dismissal.
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Richard Bribiescas @rbribiescas.bsky.social · 15/04/2025
doi.org/10.1002/ajhb...
doi.org
Testosterone, 8‐Oxo‐2′‐Deoxyguanosine (8‐OHdG) and Cu/Zn Superoxide Dismutase (SOD) in Adult Shuar Males of Amazonian Ecuador: A Test for Evidence of Trade‐Offs Between Reproductive Effort and Oxidative Stress
Objectives Reproductive effort incurs the cost of biological aging and morbidity by compromising somatic maintenance when key resources are limited. Oxidative stress is positively correlated with re...
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Barack Obama @barackobama.bsky.social · 15/04/2025
Harvard has set an example for other higher-ed institutions - rejecting an unlawful and ham-handed attempt to stifle academic freedom, while taking steps to make sure students can benefit from an environment of intellectual inquiry, rigorous debate and mutual respect. Let’s hope others follow suit.
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AAUP @aaup.org · 14/04/2025
Harvard will not comply. “No government — regardless of which party is in power — should dictate what private universities can teach, whom they can admit and hire, and which areas of study and inquiry they can pursue.” — Harvard President Alan M. Garber www.thecrimson.com/article/2025...
thecrimson.com
Harvard Will Fight Trump’s Demands | News | The Harvard Crimson
Harvard will not comply with the Trump administration’s demands to dismantle its diversity programming and limit student protests in exchange for its federal funding, University President Alan M. Garb...
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Richard Bribiescas @rbribiescas.bsky.social · 13/04/2025
👏😋
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Nature @nature.com · 13/04/2025
Evidence shows that science and scientists remain highly trusted. But genuine scientific voices are not shouting loud enough over the noise to hold sway go.nature.com/4jNRukb
go.nature.com
Science’s big problem is a loss of influence, not a loss of trust
Nature - Evidence shows that science and scientists remain highly trusted. But genuine scientific voices are not shouting loud enough over the noise to hold sway.
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Richard Bribiescas @rbribiescas.bsky.social · 11/04/2025
yaledailynews.com/blog/2025/04...
yaledailynews.com
Two more Yale international students lose visas, raising total to four
University confirmed that the visas of two more students have been revoked. Yale College Dean Pericles Lewis clarified that the students will be able to complete the academic year.
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Richard Bribiescas @rbribiescas.bsky.social · 10/04/2025
😤👎
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Richard Bribiescas @rbribiescas.bsky.social · 09/04/2025
🤡
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Richard Bribiescas @rbribiescas.bsky.social · 09/04/2025
Explore this gift article from The New York Times. You can read it for free without a subscription. www.nytimes.com/2025/04/09/p...
nytimes.com
The University President Willing to Fight Trump (Gift Article)
Christopher L. Eisgruber of Princeton University talks about the administration’s move to freeze billions of dollars in funding to higher education institutions.
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Richard Bribiescas @rbribiescas.bsky.social · 09/04/2025
www.amacad.org/news/board-s...
amacad.org
A Statement from the Board of Directors - April 2025
A statement from the Board of Directors of the American Academy of Arts & Sciences, approved April 2025.
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Pablo Nepomnaschy @pablonep.bsky.social · 08/04/2025
Join us! go.bsky.app/AByvxiY
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Richard Bribiescas @rbribiescas.bsky.social · 09/04/2025
"little balls of fluff and attitude".... so true! 😅. Carolina wrens also punch way above their weight class when it comes to their very loud calls. They sometimes sound like they are in our house! Tiny but mighty!
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Andrea Pitzer @andreapitzer.bsky.social · 08/04/2025
As the author of a history of concentration camps, I would like to emphasize that this is a very bad idea, and we should definitely not do it.
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Richard Bribiescas @rbribiescas.bsky.social · 09/04/2025
Brava/o #yalelawschool faculty 👏 yaledailynews.com/wp-content/u...
yaledailynews.com
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Richard Bribiescas @rbribiescas.bsky.social · 09/04/2025
Brava #yalelawschool Dean Heather Gerken 👏 law.yale.edu/yls-today/ne...
law.yale.edu
Message from Dean Gerken on the Rule of Law
A message from Dean Heather K. Gerken to the Law School Community on the rule of law.
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Richard Bribiescas @rbribiescas.bsky.social · 09/04/2025
yaledailynews.com/blog/2025/04...
yaledailynews.com
Two Yale international students stripped of their visas
Yale’s Office of International Students and Scholars confirmed to the News that the visas of two international students have been revoked.
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Chris Murphy @chrismurphyct.bsky.social · 09/04/2025
Good morning. Today is the 80th day that the U.S. President is running a backdoor bribery scheme in which any CEO or foreign oligarch can send him money secretly through his crypto coin scam in exchange for favors. It's the biggest scandal in the history of the Presidency.
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Rep. Jamie Raskin @raskin.house.gov · 08/04/2025
The Trump Admin sent armed marshals in a mafia-style intimidation campaign to silence and intimidate a witness set to testify in my spotlight hearing with @schiff.senate.gov. Today, Liz Oyer appeared undaunted, standing for what is right, lawful and just, to give her testimony.
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Richard Bribiescas @rbribiescas.bsky.social · 08/04/2025
Good gravy😑
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Richard Bribiescas @rbribiescas.bsky.social · 08/04/2025
Next issue “Has Soylent Green gotten a bad rap?”
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