Graham Coop

@gcbias.bsky.social

Population and evolutionary genetics @UCDavis. Posts, grammar, & spelling are my views only. He/him. #OA popgen book https://github.com/cooplab/popgen-notes/releases

Hi, Bluesky! Ecstatic my inaugural post gets to be one where I share the news that my dissertation chapter on ochre star pop genomics has finally been published!! ⭐ 🍾 🧬

John Wares@johnwares.bsky.social · 21h ago

SUPER DUPER PLEASED to share the newest pub by Dr. Paige Duffin academic.oup.com/evolut/advan... In this effort, Paige, Lauren Schiebelhut, Mike Dawson and I leveraged whole-genome sequencing to study broad biogeographic patterns in the canonical keystone seastar Pisaster ochraceus. 1/2

Increasingly powerful methods are enabling increasing complex models of ancient human history to be inferred from population genomic data. In a recent review, I highlight two blind spots in these inferences: limitations of the methods and choices of models to fit. arxiv.org/abs/2608.27591

Two blind spots in the demographic inference of human origins from genomic data

Ancient DNA and new inference methods have transformed the study of human origins, but consensus has not followed. Evidence increasingly indicates that hominin populations were pervasively structured ...

arxiv.org

Astrophotographer Adam (AJ) Smadi caught this image a few hours ago from Washington state. A thin crescent Moon, sunlight illuminating the rugged lunar surface. And 2,400 times farther away—and on the other side of the Sun—mighty Jupiter, and its moons Io (left) and Ganymede (right).

A crescent Moon seen during the day, arcing from upper left to lower right of the frame. At lower centre is the full disk of Jupiter; the small dots to its upper left and lower right and Io and Ganymede, respectively.

Biomedical scientists - a reminder that NIH proposes to "improve" peer review by hiding impact scores from Program Officers and applicants, and binning applications into broad categories of "Most competitive,""Competitive," or "Not discussed." Please provide feedback before the October 13 deadline!

Four billion years ago, Earth was a sterile rock. Today it is teeming with life, from simple microbes to extraordinarily complex societies that span the globe. How does that happen? I'm writing a book about the answer: Life Unbounded, from Quanta Books. www.quantabooks.org/books/life-u...

Life Unbounded

In LIFE UNBOUNDED, pioneering evolutionary biologist William C. Ratcliff reveals that every great leap in life’s complexity, from the first cells to human culture, was driven by the same underlying pr...

quantabooks.org

Quanta Books@quantabooks.org · last wk.

🚨New book announcement! 🚨Evolutionary biologist William C. Ratcliff’s (@wcratcliff.bsky.social) LIFE UNBOUNDED (forthcoming 2029) delivers a sweeping narrative of the emergence of complex life, and how a sterile planet transformed into the rich mosaic of beings on Earth today.

Thrilled to announce that my department - Ecology and Evolutionary Biology - at the U of Arizona will likely be hiring for a tenure-track position in "Population and Community Ecology" this fall. Watch this space for more details and official announcements coming soon ... #Ecology #EcologyJobs 🌐🌾🧪

@heliconians Heliconius John R.G. Turner as author of "Tale of Two Butterflies" in Natural History magazine, 1975 Vol 84 February (Issue 2) pp. 28-37. Announces the astonishing mimicry between Heliconius erato and Heliconius melpomene, and divergence across different regions of South America.

Shows clipping from Natural History vol. 84 February 1975 p. 2. This page shows authors of the articles in the issues, including J.R.G. Turner's article on Heliconius butterflies on pp. 28-37Showing the astonishing geographic pattern of Müllerian mimicry across South America, between two brightly coloured butterfly species, Heliconius erato and Heliconius melpomene

1/11 🐟 2nd new preprint today from @chasedbrownstein.bsky.social We investigated how losing the swim bladder, the organ that most fishes use to control their buoyancy, has shaped the diversity of ray-finned fishes over 90 million years of Earth history. The results surprised us. 🧵

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