Erhao Ge

The evolution of scientific credit: when authorship norms impede collaboration Abstract. Scientific authorship norms vary dramatically across disciplines, from contribution-sensitive systems where first author is the greatest contribu

The evolution of scientific credit: when authorship norms impede collaboration url: royalsocietypublishing.org/rsos/article...

Statistical Rethinking 2026 - Lecture B02 - Multilevel Model Expansion YouTube video by Richard McElreath

Lecture B02 of Statistical Rethinking 2026. Multilevel model expansion: workflow, cluster and feature engineering, non-centered parameterization, dank memes. Continues next week with models of population covariance and (if there is time) group-level confounding and "Mundlak machines".

New Study Probes How Same-Sex Behaviors Evolved in Nonhuman Primates New research links same-sex behaviors in nonhuman primates to the evolution of complex social structures

New research links same-sex behaviors in nonhuman primates to the evolution of complex social structures

Competition for heritable wealth, not cultural group selection, drives the evolution of monogamy | PNAS www.pnas.org/doi/abs/10.1...

“ Methods training is too often just something one is expected to soak up from colleagues and the published literature. PhD students have almost zero statistical training, and even less training in how to connect statistical analysis to theory.”

High rates of polygyny do not lock large proportions of men out of the marriage market | PNAS There is a widespread belief, in both the scholarly literature and the popular press, that polygyny prevents large numbers of men from marrying by ...

🚨 The Economist has been telling you for years that polygamy causes civil war by locking men out of marriage. A new article with @rebeccasear.bsky.social and @anthrolog.bsky.social explains that the demography of marriage markets doesn't actually work that way. 🧵

www.pnas.org/doi/10.1073/...

Overview | EHBEA2026

🚨𝗔𝘁𝘁𝗲𝗻𝘁𝗶𝗼𝗻 𝗲𝘃𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗲𝗻𝘁𝗵𝘂𝘀𝗶𝗮𝘀𝘁𝘀!
www.ehbea2026.com is now live for our 2026 European Human Behaviour & Evolution Association (EHBEA) conference in Leiden (NL🇳🇱) Check for 𝗮𝗯𝘀𝘁𝗿𝗮𝗰𝘁 𝘀𝘂𝗯𝗺𝗶𝘀𝘀𝗶𝗼𝗻, first 𝗽𝗹𝗲𝗻𝗮𝗿𝗶𝗲𝘀 & the [𝗔𝗜]𝘃𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝘁𝗵𝗲𝗺𝗲 𝘁𝗿𝗮𝗰𝗸!
🗓️ 14–17 Apr 2026 | CBEN pre-conf 14 Apr
📍Pesthuis
#EHBEA2026

Me and @watarutoyokawa.bsky.social want to thank everyone who attended, presented at, and helped organize #COSMOS2025! If you weren't able to make it, all teaching materials are already online and we'll be uploading videos of all talks soon cosmossummerschool.github.io/materials/

Kicked off #COSMOS2025 brilliant summer school on social learning and collective behaviour. First day absolutely packed with ideas ✅

Key dimensions of social learning problems. @watarutoyokawa.bsky.social giving the first tutorial of #COSMOS2025 As always, course materials are opening available on our website cosmossummerschool.github.io/materials/

The threat of analytic flexibility in using large language models to simulate human data: A call to attention Social scientists are now using large language models to create "silicon samples" - synthetic datasets intended to stand in for human respondents, aimed at revolutionising human subjects research. How...

Can large language models stand in for human participants?
Many social scientists seem to think so, and are already using "silicon samples" in research.

One problem: depending on the analytic decisions made, you can basically get these samples to show any effect you want.

THREAD 🧵

📣 Hot off the press at #ProcB!

🔍 Our study checked data/code-sharing policies in 275 eco/evo journals and compliance in Proc B (n=2,340) & Ecology Letters (n=571). Policies exist, but clarity and strictness vary, affecting reproducibility.

🔗 doi.org/10.1098/rspb...

One mother for two species via obligate cross-species cloning in ants - Nature In a case of obligate cross-species cloning, female ants of Messor ibericus need to clone males of Messor structor to obtain sperm for producing the worker caste, resulting in males from the same mother having distinct genomes and morphologies.

Nature research paper: One mother for two species via obligate cross-species cloning in ants

go.nature.com/45PYV6d