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Ryan Greenway

@ryangreenway

Science and illustration. Ecological research coordinator for the Genes and Behavior group at MPI-AB.

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16.12.2025
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Latest posts by Ryan Greenway @ryangreenway

Someone just posted about how they don't care if their students use AI as long as the text conveys the ideas the students meant to convey. The thing is, you don't know exactly what you think until you write it. And if some prefab thing pops up, you're liable to decide that was what you thought.

11.03.2026 20:40 ๐Ÿ‘ 838 ๐Ÿ” 226 ๐Ÿ’ฌ 33 ๐Ÿ“Œ 12
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Consider the Rattle In a state that still hosts grisly โ€œrattlesnake roundups,โ€ human Texans should learn to see something of themselves in their ancient, slithering kin.

My latest! In this month's cover story for the @texasobserver.org, I wrote an expansive, oddly philosophical deep dive into the western diamonback rattlesnake, a much-maligned animal I've come to have a lot of respect and affection for

09.03.2026 15:21 ๐Ÿ‘ 119 ๐Ÿ” 46 ๐Ÿ’ฌ 10 ๐Ÿ“Œ 9
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The Pokรฉmon Company Is Actively Recruiting PhD Holders With Backgrounds in Ecology to Work in Tokyo - IGN The Pokรฉmon Company is actively recruiting PhD holders with backgrounds in ecology to work in Tokyo. This is perhaps the closest chance Pokรฉmon fans have to channel their inner Professor Oak in real l...

Okay this is the only situation where I'd gleefully leave academia for industry (if only I had Japanese language skills)

www.ign.com/articles/the...

10.03.2026 19:19 ๐Ÿ‘ 84 ๐Ÿ” 18 ๐Ÿ’ฌ 8 ๐Ÿ“Œ 3
rfk standing very normally in a steak and shake

rfk standing very normally in a steak and shake

leland palmer in the black lodge

10.03.2026 15:20 ๐Ÿ‘ 4722 ๐Ÿ” 825 ๐Ÿ’ฌ 150 ๐Ÿ“Œ 145
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On the nature of darkness:

03.03.2026 19:11 ๐Ÿ‘ 299 ๐Ÿ” 63 ๐Ÿ’ฌ 4 ๐Ÿ“Œ 3
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Leonora Carrington, The Lovers, 1987

05.03.2026 05:55 ๐Ÿ‘ 148 ๐Ÿ” 39 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

Cool study. On a separate note, wow we need more (and larger) phylogenies of invertebrate clades

10.03.2026 13:34 ๐Ÿ‘ 16 ๐Ÿ” 5 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Acceleration hotspots of North American birdsโ€™ decline are associated with agriculture Human activities might have accelerated declines of population abundance, but this acceleration remains underexplored. Using 1033 North American Breeding Bird Survey routes, we analyze abundance chang...

North American bird populations are not only declining, but theyโ€™re also shrinking faster with each passing yearโ€”particularly in regions shaped by intensive agriculture, according to a new study in Science. https://scim.ag/4bkrafP

07.03.2026 19:47 ๐Ÿ‘ 79 ๐Ÿ” 32 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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Insect Migration: A sense of direction Migratory moths use both magnetic and visual cues for navigation when travelling long distances in the dark.

A sense of direction

07.03.2026 07:26 ๐Ÿ‘ 8 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Satellite proposals threaten the night sky In the United States, the Federal Communications Commission (FCC), the agency responsible for authorizing satellite launches and operationsโ€ฆ

The FCC just opened public comments on SpaceX's plan to launch a million satellites to do AI compute in space. Under the current proposal, an environmental review won't be required. Please consider submitting a public comment to oppose this damaging plan.
darksky.org/news/two-sat...

22.02.2026 19:21 ๐Ÿ‘ 3599 ๐Ÿ” 2767 ๐Ÿ’ฌ 125 ๐Ÿ“Œ 424
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NIH reneges on recognizing union for early career researchers The biomedical research agency says trainees in its labs are not โ€œemployeesโ€

NIH sent notice this week that it will no longer recognize a union of early career researchers on the basis that trainees aren't "employees." My latest for @science.org.

www.science.org/content/arti...

05.03.2026 18:18 ๐Ÿ‘ 29 ๐Ÿ” 13 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Koalas (Phascolarctos cinereus), such as this mother and 7-month-old joey from Queensland, Australia, embody a genetic paradox. Populations rich in diversity are declining, whereas those with little variation are expanding and rapidly reshuffling their genomes. These findings reveal that diversity alone does not determine resilience. Instead, a populationโ€™s fate depends on several evolutionary processes unfolding across generations.

Koalas (Phascolarctos cinereus), such as this mother and 7-month-old joey from Queensland, Australia, embody a genetic paradox. Populations rich in diversity are declining, whereas those with little variation are expanding and rapidly reshuffling their genomes. These findings reveal that diversity alone does not determine resilience. Instead, a populationโ€™s fate depends on several evolutionary processes unfolding across generations.

According to a new study of Australiaโ€™s koala populations, rapid demographic rebound may be able to restore once-lost genetic variation and drive recombination in ways that re-establish long-term evolutionary potential in previously bottlenecked populations.

Learn more: https://scim.ag/4b6hLaE

05.03.2026 19:05 ๐Ÿ‘ 48 ๐Ÿ” 13 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Been wanting to write this one for awhile!

Conservation obsesses over rare species. But what about the common ones?

Bluegill are the fish almost everyone knows & caught as a child. But, how much do we REALLY know?

New long-form essay ๐Ÿ‘‡ ๐ŸŽฃ #InDefeseOfPanfish tnature.substack.com/p/behold-the...

03.03.2026 19:57 ๐Ÿ‘ 35 ๐Ÿ” 11 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0

A war that isn't a war, documented with videos that may or may not be real, funded by elected leaders who are neither for nor against it, is the most dystopian thing that's happened in my lifetime

05.03.2026 00:59 ๐Ÿ‘ 4258 ๐Ÿ” 1031 ๐Ÿ’ฌ 32 ๐Ÿ“Œ 31

You're absolutely rightโ€”that was not a command post, that was an elementary school. Those were not military leadersโ€”they were schoolchildren. I said the opposite, and that's on me.

05.03.2026 04:51 ๐Ÿ‘ 2303 ๐Ÿ” 320 ๐Ÿ’ฌ 21 ๐Ÿ“Œ 9
An ancient aspen tree is growing moss at the stem.

An ancient aspen tree is growing moss at the stem.

Fallen trees are covered with moss on the forest floor.

Fallen trees are covered with moss on the forest floor.

Old-growth boreal forests have so much more life in them compared to monoculture plantations. Ancient trees decay for ages on the forest floor, providing habitat for plants and animals. Vitality everywhere you look.

05.03.2026 06:07 ๐Ÿ‘ 68 ๐Ÿ” 13 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1

It's the funding of taxonomic research & training that's dying out. Without an ability to identify life forms, we can't recognize/quantify invasions & extinctions and their impacts on ecosystems. Imagine trying to repair a complex steel structure if you can't distinguish different types of bearings.

03.03.2026 04:27 ๐Ÿ‘ 49 ๐Ÿ” 17 ๐Ÿ’ฌ 4 ๐Ÿ“Œ 1

Three weeks ago I spent a few days in one of our global dark sky sanctuaries in Rakiura Stewart Island New Zealand. Never has deep time felt so real or so close.

But every now and then one of Elon's dumbfuck satellites would interrupt the eternal rhythms of the stars. Let's not let it get worse.

27.02.2026 05:27 ๐Ÿ‘ 512 ๐Ÿ” 151 ๐Ÿ’ฌ 17 ๐Ÿ“Œ 4
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A New Wharton Study on AI Warns of a Growing Problem: Cognitive Surrender Casual users should pay special attention

This is a mental war that we have to win. It's not about being a luddite, it's about destroying or retaining the ability to think. It's about how insidious this becomes in a situation where generative AI is adopted and then subverted intentionally.

www.thealgorithmicbridge.com/p/a-new-whar...

24.02.2026 20:28 ๐Ÿ‘ 675 ๐Ÿ” 241 ๐Ÿ’ฌ 12 ๐Ÿ“Œ 25
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Ten simple rules for building a collaborative coding culture

This was such a fun collaboration with @analog-ashley.bsky.social and team, including some of our own @sciencebanshee.bsky.social and @shen4brains.bsky.social And h/t to Alana McPherson for the infographic!

dx.plos.org/10.1371/jour...

23.02.2026 21:01 ๐Ÿ‘ 16 ๐Ÿ” 8 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 2
Sketch book page showing pencil drawings of a male Xiphophorus birchmannj and male Poecilia salvatoris.

Sketch book page showing pencil drawings of a male Xiphophorus birchmannj and male Poecilia salvatoris.

Couple poeciliid sketches for #SundayFishSketch
Xiphophorus birchmanni and Poecilia salvatoris
#poeciliidae #SciArt

22.02.2026 20:43 ๐Ÿ‘ 21 ๐Ÿ” 7 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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How specific are heritable symbioses?

And what can we learn from swapping obligate symbionts across host species?

We address this in our latest, led by @inespons.bsky.social & in our collaboration w/ @microbiome.bsky.social ๐Ÿฆ ๐Ÿชฒ Out today in @natcomms.nature.com!

1/n
www.nature.com/articles/s41...

16.02.2026 07:24 ๐Ÿ‘ 114 ๐Ÿ” 70 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 3
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New in JFB: Alfaro huberi must have one of the strangest mating behaviors among poeciliid fishes. #TeamFish #FishSci

Paper: onlinelibrary.wiley.com/doi/10.1111/...
Corresponding video: www.youtube.com/watch?v=cKWA...

19.02.2026 15:54 ๐Ÿ‘ 24 ๐Ÿ” 8 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 3
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Are you an relatively new to field ecology and data collection? Or are are you supervising students? Our guide for effective field data collection is now published in @methodsinecoevol.bsky.social! We also include a printable poster with a visual overview of the guide
doi.org/10.1111/2041...

16.02.2026 08:25 ๐Ÿ‘ 61 ๐Ÿ” 27 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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The billionaires' eugenics project: how Epstein infiltrated Harvard, muzzled the humanities and preached master-race science Edge - Jeffrey Epstein's favourite intellectual salon - was sold to me as a gathering of the world's finest minds, writes Virginia Heffernan. The files reveal it was something far darker: a decades-lo...

This is hands-down the best thing Iโ€™ve read on Epsteinโ€˜s worldview and those of his fellow tech, finance, and academic elite. Itโ€™s a rough read, but at least every paragraph is a banger. ๐Ÿ”ฅ๐Ÿ”ฅ๐Ÿ”ฅ๐Ÿ˜ญ

15.02.2026 13:36 ๐Ÿ‘ 119 ๐Ÿ” 54 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 9

I'm super excited to share that this article was published today in Science! www.science.org/doi/10.1126/...

All made possible by the fantastic group of donors, volunteers and scientists at The American Chestnut Foundation (tacf.org), HudsonAlpha Institute for Biotechnology, and our collaborators.

12.02.2026 19:26 ๐Ÿ‘ 100 ๐Ÿ” 44 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 5
Pen and watercolour illustrations of waders/shorebirds from the Hartlepool/Teesmouth area of northeast England

Pen and watercolour illustrations of waders/shorebirds from the Hartlepool/Teesmouth area of northeast England

A not-completely-exhaustive illustration of our winter shorebirds, but these are the species that youโ€™re most likely to see during winter around Teesmouth (northeast England).
๐Ÿก๐Ÿชถ
#birdingNortheast

11.02.2026 16:47 ๐Ÿ‘ 2107 ๐Ÿ” 254 ๐Ÿ’ฌ 42 ๐Ÿ“Œ 10
Auf dem Bild ist ein Biber zu sehen. Der Text: Jetzt Petition unterzeichnen: Schรผtzt die Biber!

Auf dem Bild ist ein Biber zu sehen. Der Text: Jetzt Petition unterzeichnen: Schรผtzt die Biber!

๐Ÿฆซ Die neue Biberverordnung in Baden-Wรผrttemberg sieht vor, dass Biber leichter getรถtet werden kรถnnen. Aber der #Biber ist nicht das Problem, sondern die Lรถsung: Er ist eine Schlรผsselart fรผr unsere Natur! Hilf uns, Biber in BaWรผ zu schรผtzen.
โœ๏ธ Zur Petition โžก๏ธ petitionen.landtag-bw.de/Petitionen/D...

11.02.2026 08:04 ๐Ÿ‘ 63 ๐Ÿ” 25 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 0

Using behavior experiments, environmental data, and genomic analyses on a global collection of wild C. elegans isolates, we show that variation in aggregation behavior is likely driven by natural selection in response to elevational gradients.

10.02.2026 15:33 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0