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Catherine Sheard

@sheardcat

Fellow @ University of Aberdeen. Professionally: macroevolution, especially birds & languages. Personally: drinks too much coffee, plays too much D&D. she/her

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31.05.2023
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Latest posts by Catherine Sheard @sheardcat

The ethical risks of open-access agreements being used for authorship leverage Letter to the Editor

"The ethical risks of open-access agreements being used for authorship leverage" <- yeah, no kidding 🫠

www.nature.com/articles/d41...

10.03.2026 16:16 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This is so heartbreaking, and also I am going to make my PSA again.

Babies can be vaccinated against measles as young as six months, it’s just not standard. It’s usually only recommended for international travel in the US. But guess what? We’re the plague pit now.

10.03.2026 15:43 πŸ‘ 204 πŸ” 86 πŸ’¬ 7 πŸ“Œ 0
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Pete Hegseth Blew Billions on Fruit Basket Stands, Chairs, and Crab The Defense Department went on a $93 billion spending spree in 2025.

As millions of Americans were losing their SNAP benefits the Pentagon spent:

πŸ”ΉοΈ$6.9 million worth of lobster tails🦞
πŸ”ΉοΈ$15.1 million for ribeye steak πŸ₯©
πŸ”ΉοΈ$2 million for Alaskan king crab πŸ¦€
πŸ”ΉοΈ and even $98,329 on a Steinway & Sons grand piano

✏️ by @newrepublic.com

10.03.2026 04:24 πŸ‘ 1574 πŸ” 938 πŸ’¬ 99 πŸ“Œ 181
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The PokΓ©mon Company Is Actively Recruiting PhD Holders With Backgrounds in Ecology to Work in Tokyo - IGN The PokΓ©mon Company is actively recruiting PhD holders with backgrounds in ecology to work in Tokyo. This is perhaps the closest chance PokΓ©mon fans have to channel their inner Professor Oak in real l...

This could be your dream job!
PhD in ecology, and English and Japanese language skills required... working for POKEMON!!!

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

10.03.2026 05:50 πŸ‘ 182 πŸ” 116 πŸ’¬ 7 πŸ“Œ 20
3 Year Postdoctoral Fellowships in Animal Behavior

3-year Independent Post-doc in Animal Behavior based at the Smithsonian Tropical Research Institute in Panama!

Three positions, each including salary & a research budget.

Applications due April, 15th.

DM if you are interesting in developing a project with us!

stri.si.edu/academic-pro...

10.03.2026 08:28 πŸ‘ 17 πŸ” 38 πŸ’¬ 1 πŸ“Œ 0

I give that paper to my students -- it's great!!!

09.03.2026 17:40 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The internet, on scientists: They're secretive gatekeepers, they hoard esoterica/the truth, they don't want anyone in their ivory tower little clubs

Actual scientists: LOOK, WE FOUND A 300 MILLION YEAR OLD FOSSILIZED CLOACCAL IMPRESSION AND THE VENT IS HORIZONTAL! PLZ READ MY 67-PAGE PAPER ABOUT IT

09.03.2026 04:42 πŸ‘ 1164 πŸ” 358 πŸ’¬ 1 πŸ“Œ 0

if you're wondering what this means for the water situation this year, the answer involves a lot of hyperventilating

09.03.2026 16:17 πŸ‘ 331 πŸ” 65 πŸ’¬ 17 πŸ“Œ 2

Our PhD opportunity is still open. A match-funded project with @chesterzoo.bsky.social, where the student will also be a Conservation Scholar. An exciting interdisciplinary project that can be tailored to the student. Even the pigeons are interested in our LiDAR scanner!

09.03.2026 15:04 πŸ‘ 3 πŸ” 8 πŸ’¬ 0 πŸ“Œ 0

I'm just an academic editor, BEGGING the new Wiley software to flag when potential reviewers are in fact manuscript authors.

(With apologies to author 34ish of this 70ish person manuscript, who just got invited to review her own paper.)

09.03.2026 15:10 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It's 2026.

Puberty blockers have been banned on the basis of a fake study conducted by a generalist paeditrician.

Hormones for under 18s have been banned on the basis of a fake review conducted by a head injury specialist.

Both remain available for cis kids because that's 'different' somehow

09.03.2026 08:24 πŸ‘ 1474 πŸ” 477 πŸ’¬ 5 πŸ“Œ 9

Yes, that, exactly!

08.03.2026 21:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Screenshot of the EGI seminars You-tube Channel

Screenshot of the EGI seminars You-tube Channel

We've uploaded recordings of many of our seminars over the last few months to our You-tube channel, including from @cornishjackdaws.bsky.social, Kristen Ruegg, Daniel Field, @jon-slate.bsky.social, Paul Acker, @thelabandfield.bsky.social & @kokkonut.bsky.social - Enjoy!

www.youtube.com/@EGIOxford

08.03.2026 12:58 πŸ‘ 25 πŸ” 16 πŸ’¬ 0 πŸ“Œ 0

Shared from my PhD lab’s WhasApp chat, how a journal published a paper about the Arctic fox which is 100% an AI hallucination, and journal isn’t retracting it.

www.canids.org/resources/Le...

Damn depressing how fake science and AI is increasingly flooding real science and real work.

07.03.2026 09:48 πŸ‘ 36 πŸ” 17 πŸ’¬ 1 πŸ“Œ 0
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There is No Consensus on Biological Sex At this critical moment when misinformation about sex is being applied to policy globally, scientific clarification on the definition of biological sex is valuable. Here, we evaluate the primary appr...

New paper out in ecology letters! with @andylee.bsky.social @allydefduf.bsky.social

We synthesized the active debate on how scientists define sex, including limitations and assumptions. We believe this discussion will lead to more accurate science.

onlinelibrary.wiley.com/doi/10.1111/...

06.03.2026 20:14 πŸ‘ 105 πŸ” 58 πŸ’¬ 2 πŸ“Œ 4
Quantifying the Impact of Fossil Age on Reconstructing Trait Evolution Using Phylogenetic Comparative Methods

πŸ“’ Including fossil tips in your phylogeny can double your continuous trait model fitting accuracy!

Updated preprint out now on @ecoevorxiv.bsky.social.

πŸ”— doi.org/10.32942/X27...

with @pedrolgodoy.bsky.social @macroecoevoale.bsky.social and @bethanyjallen.bsky.social

06.03.2026 19:00 πŸ‘ 39 πŸ” 23 πŸ’¬ 1 πŸ“Œ 2

Amazing πŸͺΏπŸ“–

06.03.2026 13:01 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

10/10, no notes, incredible πŸ˜‚

06.03.2026 13:01 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I love attempting to decipher my Notes app.

"Koblenz"
"Rates of evolution"
"Birds in Scotland"

Past!Catherine, wtf πŸ˜‚

06.03.2026 09:47 πŸ‘ 5 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
Post image Post image

We know that marine fishes 🐠 have an inverse gradient of speciation compared to that of spp richness, with higher speciation at higher latitudes. But, what about freshwater 🐟?

Find out in the new PhD paper by Juliana Herrera-PΓ©rez and friends (not just colleagues) 🀿 πŸ‘‡

shorturl.at/zgKfA

23.01.2026 21:47 πŸ‘ 27 πŸ” 13 πŸ’¬ 1 πŸ“Œ 0
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No Evidence for Pace of Life Evolution Along Elevational Gradients in Squamate Reptiles Ecological conditions can significantly influence the trade-off between survival, growth, and reproduction, leading to evolutionary divergence in life-history traits among populations experiencing di...

No Evidence for Pace of Life Evolution Along Elevational Gradients in Squamate Reptiles | Sahlean & Martin, 2026 | Ecology Letters

onlinelibrary.wiley.com/doi/full/10....

05.03.2026 12:17 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Birds That Don't Exist: Niche Pre‐Emption as a Constraint on Morphological Evolution in the Passeroidea We use topological data analysis to reveal a persistent morphological gap in a major group of songbirds (superfamily Passeroidea). The gap remained unoccupied for millions of years, even though nearb...

Well damn, this is cool.

Birds That Don't Exist: Niche Pre-Emption as a Constraint on Morphological Evolution in the Passeroidea | Chia et al., 2026 | Ecology Letters

onlinelibrary.wiley.com/doi/full/10....

05.03.2026 12:14 πŸ‘ 37 πŸ” 15 πŸ’¬ 1 πŸ“Œ 3
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Uniqueness and predictability in evolution and the history of mollusks | PNAS Evolution is a historical process whose trajectories are determined in part by the introduction of new phenotypes. Although most phenotypes have ev...

Uniqueness and predictability in evolution and the history of mollusks | Vermeij & Thomson, 2026 | PNAS

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

05.03.2026 12:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

That's very kind of you, thank you!

05.03.2026 12:07 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Black Death Land Abandonment Drove European Diversity Losses Our analyses reveal rapid declines in floristic diversity at timescales coincident with the Black Death depopulation event, followed by a diversity rebound over subsequent centuries that mirrored the...

Black Death Land Abandonment Drove European Diversity Losses | Gordon et al. 2026 | Ecology Letters

Woah.

onlinelibrary.wiley.com/doi/full/10....

05.03.2026 12:07 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Wealthy Dubai residents race back to UAE to avoid tax bills Some risk spending too few days in the emirate and too many in the UK

Tax exiles stuck in London desperately trying to get *back* to Dubai to avoid becoming tax resident in the UK? Just great stuff. giftarticle.ft.com/giftarticle/...

05.03.2026 11:55 πŸ‘ 4016 πŸ” 1255 πŸ’¬ 206 πŸ“Œ 329

πŸ“‘πŸ“ŠWe have just uploaded a new pre-print where we decompose spatial, temporal and spatial-temporal variation in natural selection on reproductive traits for great tits and blue tits.
With Yimen Araya-Ajoy, @ellafcole.bsky.social and @sheldonbirds.bsky.social
www.biorxiv.org/content/10.6...

04.03.2026 19:01 πŸ‘ 10 πŸ” 6 πŸ’¬ 1 πŸ“Œ 1
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Limited thermal tolerance in tropical insects and its genomic signature - Nature A survey of tropical insect populations and thermal tolerance limits indicates that species from lowland areas have low capacity to survive increased temperatures, and that thermal tolerance is limite...

fantastic paper by @kimholzmann.bsky.social & colleagues presenting data on ~2300 insect species along two tropical mountain slopes

www.nature.com/articles/s41...

04.03.2026 20:00 πŸ‘ 6 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Post image

What if the use of psychoactive substances, particularly alcohol consumption, had been a factor in the rise of socio-political complexity throughout human history?

Addressing this question is not easy, but it is worth trying πŸ‘‡πŸΌ

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

04.03.2026 12:34 πŸ‘ 5 πŸ” 5 πŸ’¬ 0 πŸ“Œ 1
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#NewPaperAlert! So incredibly proud of Katy Silber, former PhD student & post-doc for publishing ALL of the work she did in the lab. This last paper @pnas.org answers the question, how and why does rain matter to bird reproduction, *generally*? Here is the graphic summary... details below.
1/n

03.03.2026 15:32 πŸ‘ 14 πŸ” 5 πŸ’¬ 1 πŸ“Œ 2