Leigh Anne Riedman's Avatar

Leigh Anne Riedman

@fossils.bsky.social

Paleontologist, lover of early eukaryotic evolution, all of the protists, fan of the Proterozoic and I bake.

430 Followers  |  669 Following  |  365 Posts  |  Joined: 13.10.2023  |  2.0451

Latest posts by fossils.bsky.social on Bluesky

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Federal ICE Agent Pepper Sprays Person in Face in Santa Barbara Eastside Incident A masked federal agent wearing a vest labeled β€œpolice” pepper sprayed a person in the face at close range Wednesday morning on Santa Barbara’s Eastside.

www.noozhawk.com/federal-ice-...

28.01.2026 22:41 β€” πŸ‘ 0    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Oh man, the southerner (Louisiana) and southern Californian in me is worried about the spiders in those awesome clogs!

28.01.2026 03:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Prevalence and Evolutionary Implications of Genome Rearrangements in Bacteria Abstract. The genetic material of bacteria and archaea is organized into various structures and set-ups, attesting that genome architecture is dynamic in t

Paper alert 🚨 @lbobay.bsky.social and I explored the prevalence and potential drivers of genome rearrangements in bacteria.
academic.oup.com/gbe/advance-...

25.01.2026 19:46 β€” πŸ‘ 10    πŸ” 4    πŸ’¬ 1    πŸ“Œ 1

I think I'd be a lot less annoyed if 2factor didn't require use of my personal phone. If my employer wants 2factor, then they need to supply the second device, not rely on me to foot that bill

27.01.2026 19:57 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
Call for Applications: PhD and Postdoctoral Scholarships – Slamovits Lab at Dalhousie University

🐟🐚πŸ¦ͺπŸ¦πŸ¦€
Seeking candidates for a PhD/postdoc opportunity via IMPACT+ program in protistology+aquaculture in Halifax.

For more info, contact me by Feb 5th or see:

slamo.biochem.dal.ca/call-for-app...

#aquaculture #microsky #marinelife #protistsonsky #microalgae #protists

23.01.2026 18:12 β€” πŸ‘ 5    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0

Opinion | I'm a pro-family conservative. Here's why I'm ok with Trump being best friends with a pedophile, Elon Musk creating a mountain of kiddie porn, and ICE abducting five-year-olds.

23.01.2026 03:13 β€” πŸ‘ 1401    πŸ” 271    πŸ’¬ 20    πŸ“Œ 7

to make everything about Tolkien, as is my wont, this is definitely akin to the repeated theme in his works of living with real and justified and meaningful hope while knowing that there is much darkness we have to travel through to see that hope realized

22.01.2026 16:57 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

living in a state of short term pessimism, medium term realism, and long term optimism is confusing to the psyche.

22.01.2026 16:48 β€” πŸ‘ 12    πŸ” 1    πŸ’¬ 2    πŸ“Œ 1

Yes we do!

21.01.2026 21:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

He's about to yell "PARKOUR" and ricochet off the railing to jump at you

20.01.2026 04:06 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Hypothetical scenario of eukaryogenesis.

Hypothetical scenario of eukaryogenesis.

Dominant contribution of Asgard archaea to eukaryogenesis πŸ§ͺ
www.nature.com/articles/s41...

The findings imply a model of eukaryogenesis in which key features of eukaryotic cell organization evolved in the Asgard lineage leading to the LECA the last eukaryotic common ancestor.

19.01.2026 15:47 β€” πŸ‘ 10    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
"Every bombed village is my hometown"
- James Baldwin
And every dead child is my child.
Every grieving mother is my mother.
Every crying father is my father.
Every home turned to rubble is the home I grew up in.
Every brother carrying the remains of his brother across borders is my brother.
Every sister waiting for a sister who will never come home is my sister.
Every one of these people are ours, Just like we are theirs.
We belong to them and they belong to us.

"Every bombed village is my hometown" - James Baldwin And every dead child is my child. Every grieving mother is my mother. Every crying father is my father. Every home turned to rubble is the home I grew up in. Every brother carrying the remains of his brother across borders is my brother. Every sister waiting for a sister who will never come home is my sister. Every one of these people are ours, Just like we are theirs. We belong to them and they belong to us.

I wrote this poem as an homage to Baldwin and to hear it being sung across the world or read in protests has been my own guiding light of hope.

18.01.2026 20:45 β€” πŸ‘ 998    πŸ” 309    πŸ’¬ 18    πŸ“Œ 7

I have been so productive today, dealing with some of the most unpleasant household stuff like scrubbing out litter boxes.

Yes, I do have paper revisions and responses to reviewers due soon, why do you ask?

19.01.2026 00:00 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

β€œI have no beliefs! Vote for me!”

18.01.2026 22:03 β€” πŸ‘ 138    πŸ” 14    πŸ’¬ 6    πŸ“Œ 0

Now I need to go watch the 1986 classic film, Labyrinth.

18.01.2026 18:19 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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These Deep-Sea Creatures Liked You on Hinge Black seadevil anglerfish Twenty-five-years-old, monogamous, wants children What I’m looking for: A confident, independent female roughly twenty ti...

SEA LAMPREY
(Four hundred fifty million years old)

I go crazy for: Blood

Change my mind about: Blood

I want someone who: Blood

18.01.2026 15:30 β€” πŸ‘ 51    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0
Assistant professor in botany job description for University of Northern British Columbia

Assistant professor in botany job description for University of Northern British Columbia

Come work with us! We are seeking a tenure-track botanist, preferably in the areas of non-vascular, systematics, physiology or cell. Happy to answer questions.

unbc.njoyn.com/CL/xweb/xweb...

πŸ§ͺ🌱 #botany

16.01.2026 23:30 β€” πŸ‘ 29    πŸ” 45    πŸ’¬ 1    πŸ“Œ 0
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a woman says " would you like to join us " with her eyes closed ALT: a woman says " would you like to join us " with her eyes closed

πŸ“’ Open faculty position – Origins of Life
We have an opening in our section at the University of Geneva! πŸ§¬πŸš€

SPREAD THE WORD

Apply here: jobs.unige.ch/www/wd_porta...

16.01.2026 17:49 β€” πŸ‘ 44    πŸ” 39    πŸ’¬ 1    πŸ“Œ 1
Two king cakes, which are ring shaped yeasted cakes decorated in stripes of purple, gold and green colored sugar on top of white cream cheese frosting (not pictured, small ceramic crowns hidden in the cakes)

Two king cakes, which are ring shaped yeasted cakes decorated in stripes of purple, gold and green colored sugar on top of white cream cheese frosting (not pictured, small ceramic crowns hidden in the cakes)

Feels weird to post silly stuff right now, but maybe doing so is a little act of defiance? I'll keep working on that idea, but in the meantime here are the first king cakes of the season!

17.01.2026 01:51 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Illustration of gene flow along the succession of events leading from a simple archaeal ancestor through the more complex Asgard intermediate capturing the proto-mitochondrial alphaproteobacterial endosymbiont to the LECA. The wide coloured shape denotes the dominant trend of the origin of eukaryotic genes from Asgard ancestors, with light blue portions corresponding to archaeal evolution and the light brown portion to the evolution of protoeukaryotes starting with the alphaproteobacterial endosymbiosis. The purple arrows denote the smaller, piecemeal contributions of gene influx from various bacteria that are posited to have been occurring at all stages of the depicted evolutionary scenario.

Illustration of gene flow along the succession of events leading from a simple archaeal ancestor through the more complex Asgard intermediate capturing the proto-mitochondrial alphaproteobacterial endosymbiont to the LECA. The wide coloured shape denotes the dominant trend of the origin of eukaryotic genes from Asgard ancestors, with light blue portions corresponding to archaeal evolution and the light brown portion to the evolution of protoeukaryotes starting with the alphaproteobacterial endosymbiosis. The purple arrows denote the smaller, piecemeal contributions of gene influx from various bacteria that are posited to have been occurring at all stages of the depicted evolutionary scenario.

Asgard archaea may have facilitated the evolutionary development of the mitochondria via endosymbiosis of Ξ±-proteobacteria at some point between the first eukaryotic common ancestor (FECA) and the last eukaryotic common ancestor (LECA)! πŸ§ͺ

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

15.01.2026 00:18 β€” πŸ‘ 30    πŸ” 14    πŸ’¬ 1    πŸ“Œ 1
A black cat sitting upright in a cardboard box.

A black cat sitting upright in a cardboard box.

It is a truth universally acknowledged that a box divested of its contents must be in want of a cat.

11.01.2026 01:26 β€” πŸ‘ 37    πŸ” 2    πŸ’¬ 2    πŸ“Œ 0

@michaelhobbes.bsky.social and @yrfatfriend.bsky.social you're working on a new food pyramid episode, right?

07.01.2026 17:46 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Tenure-track Asst Prof Position in Geophysics at Columbia University. Apply by 31 January. See also: csdms.colorado.edu/wiki/Jobs

05.01.2026 20:38 β€” πŸ‘ 10    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0

Congrats Lucy! Looking forward to reading it!

05.01.2026 21:55 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Thallium isotopic evidence for the Tonian rise and Cryogenian fall of Neoproterozoic oxygen levels | Geology | GeoScienceWorld Estimating dissolved oxygen (O2) concentrations in seawater during the Neoproterozoic is central to testing hypotheses about the role of O2 in animal

Were Earth's deep oceans better oxygenated during the Tonian than later in the Neoproterozoic? New thallium isotope data suggest they were. Check out our new paper in Geology:
doi.org/10.1130/G536...

05.01.2026 19:30 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 2    πŸ“Œ 0
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Professurship (W2) in Microbiology - Regensburg (Stadt), Bayern (DE) job with UniversitΓ€t Regensburg | 12851113 UNIVERSITY OF REGENSBURG Β  The Faculty of Biology and Pre-Clinical Medicine invites applications for a Β  Professurship (W2) in Microbiology Β  To be...

A new year brings new opportunities: we are looking to fill a permanent professorship position with a Microbiologist preferably with expertise on archaeal biology, RNA biology or imaging techniques to unravel cell biology in prokaryotes! Please share and/or apply :)! www.nature.com/naturecareer...

05.01.2026 09:46 β€” πŸ‘ 32    πŸ” 43    πŸ’¬ 0    πŸ“Œ 2
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Microbial eukaryotes keep challenging assumptions about eukaryotic cell and genome biology.

Our upcoming workshop explores the frontier of protist genomics and how it shapes cell biology, ecology and evolution.

Please save the date! Talks, posters and ECR events

Websites and details coming soon

13.12.2025 10:19 β€” πŸ‘ 93    πŸ” 38    πŸ’¬ 1    πŸ“Œ 0
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Unconstitutional force. Civilians dead. Congress bypassed. Oil interests front and center.

We’ve seen this movie before and it ends in blood. But we don’t have to do it again.

03.01.2026 22:36 β€” πŸ‘ 16660    πŸ” 3800    πŸ’¬ 395    πŸ“Œ 96

Just woke up even angrier. Impeach, convict, remove. Draft articles now. Either we have a representative government or we don’t. Do not shut up about this until there’s a vote.

03.01.2026 13:48 β€” πŸ‘ 40218    πŸ” 9523    πŸ’¬ 763    πŸ“Œ 317

So it's ok for one country to go into another country and arrest its leader for criminal activity that hurts people.

Canada has the chance now to do the funniest thing ever.

03.01.2026 22:39 β€” πŸ‘ 309    πŸ” 87    πŸ’¬ 17    πŸ“Œ 3

@fossils is following 20 prominent accounts