Evan Waldron MD PhD
@evwaldron.bsky.social
Clinical Pathologist: Transfusion Medicine Fellow and Postdoctoral Researcher at Columbia University Medical Center
Biochemist, structural biologist, sometimes bacterial geneticist
Biochemist, structural biologist, sometimes bacterial geneticist
Reposted by Evan Waldron MD PhD
Breaking news: The Supreme Court has declined to consider a challenge to its landmark 2015 ruling that legalized same-sex marriage nationwide.
The challenge came from a county clerk who stopped issuing marriage licenses shortly after the ruling.
The challenge came from a county clerk who stopped issuing marriage licenses shortly after the ruling.
Supreme Court won’t hear challenge to landmark gay marriage ruling
The announcement indicates there is not an appetite among the high court’s conservative majority to revisit one of the court’s most significant decisions in recent years.
www.washingtonpost.com
November 10, 2025 at 2:53 PM
Breaking news: The Supreme Court has declined to consider a challenge to its landmark 2015 ruling that legalized same-sex marriage nationwide.
The challenge came from a county clerk who stopped issuing marriage licenses shortly after the ruling.
The challenge came from a county clerk who stopped issuing marriage licenses shortly after the ruling.
Good times at Vassar back in the day painting squids
October 27, 2025 at 6:41 PM
Good times at Vassar back in the day painting squids
Reposted by Evan Waldron MD PhD
1/10 Genome maintenance by telomerase is a fundamental process in nearly all eukaryotes. But where does it come from?
Today, we report the discovery of telomerase homologs in a family of antiviral RTs, revealing an unexpected evolutionary origin in bacteria.
www.biorxiv.org/content/10.1...
Today, we report the discovery of telomerase homologs in a family of antiviral RTs, revealing an unexpected evolutionary origin in bacteria.
www.biorxiv.org/content/10.1...
Antiviral reverse transcriptases reveal the evolutionary origin of telomerase
Defense-associated reverse transcriptases (DRTs) employ diverse and distinctive mechanisms of cDNA synthesis to protect bacteria against viral infection. However, much of DRT family diversity remains ...
www.biorxiv.org
October 17, 2025 at 5:22 PM
1/10 Genome maintenance by telomerase is a fundamental process in nearly all eukaryotes. But where does it come from?
Today, we report the discovery of telomerase homologs in a family of antiviral RTs, revealing an unexpected evolutionary origin in bacteria.
www.biorxiv.org/content/10.1...
Today, we report the discovery of telomerase homologs in a family of antiviral RTs, revealing an unexpected evolutionary origin in bacteria.
www.biorxiv.org/content/10.1...
Reposted by Evan Waldron MD PhD
A wood panel commission for @evwaldron.bsky.social !
We both love Grograman, The Many-Colored Death, from the Neverending Story book, so he asked me for my interpretation. Whatever Grograman touches crumbles into burning multicolor sand, and he changes to the color of whatever dune he's standing on
We both love Grograman, The Many-Colored Death, from the Neverending Story book, so he asked me for my interpretation. Whatever Grograman touches crumbles into burning multicolor sand, and he changes to the color of whatever dune he's standing on
September 28, 2025 at 2:14 AM
A wood panel commission for @evwaldron.bsky.social !
We both love Grograman, The Many-Colored Death, from the Neverending Story book, so he asked me for my interpretation. Whatever Grograman touches crumbles into burning multicolor sand, and he changes to the color of whatever dune he's standing on
We both love Grograman, The Many-Colored Death, from the Neverending Story book, so he asked me for my interpretation. Whatever Grograman touches crumbles into burning multicolor sand, and he changes to the color of whatever dune he's standing on
Reposted by Evan Waldron MD PhD
Ok guys, I made a little cave painting simulator! This is a little minigame where you can draw on a cave wall, using colors inspired by the pigments used on cave art. You can also paste stickers based on famous cave paintings!
www.newgrounds.com/portal/view/...
www.newgrounds.com/portal/view/...
Cave Painter
Small cave painting simulator
www.newgrounds.com
August 16, 2025 at 2:37 PM
Ok guys, I made a little cave painting simulator! This is a little minigame where you can draw on a cave wall, using colors inspired by the pigments used on cave art. You can also paste stickers based on famous cave paintings!
www.newgrounds.com/portal/view/...
www.newgrounds.com/portal/view/...
The Lion
Slightly diminish a musical:
Sublet
Sublet
Slightly diminish a musical:
Les Inconfortables
Les Inconfortables
August 14, 2025 at 3:45 AM
The Lion
My first thought was the program
#AvianAugust Hawaiian #Birds Day 4: Alae ke'oke'o aka Hawaiian Coot (Fulica alai)
🚨IUCN Red List: VULNERABLE
Pl. 36 from Mammalogy and Ornithology V.8, 1858. Species 1st scientifically described by Titian Ramsay Peale (1799-1885) in 1849; plate made from his sketches.
library.si.edu/es/image-gal...
🚨IUCN Red List: VULNERABLE
Pl. 36 from Mammalogy and Ornithology V.8, 1858. Species 1st scientifically described by Titian Ramsay Peale (1799-1885) in 1849; plate made from his sketches.
library.si.edu/es/image-gal...
![natural history art, scientific illustration: hand-colored book plate illustrating a single adult specimen of a Hawaiian Coot in side profile
Plate illustration credited to William E Hitchcock, but Titian Ramsay Peale is the artist-naturalist on the expedition credited with scientifically describing the species and whose field sketches (along with John Cassin) were used as models for the plates in this volume.
[Cassin, John. 1858. Mammalogy and ornithology. Vol.8 atlas, Philadelphia : Printed by C. Sherman & son.]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:l5pcfqdnvtivhxufycjnvzui/bafkreieddytmwusbruwisaylqsdvwlbt5a3yvenvljfsacbyztu7hmyzsi@jpeg)
August 5, 2025 at 5:26 AM
My first thought was the program
Reposted by Evan Waldron MD PhD
So delighted that the #LTEE landed in my podcast feed today! Great job as always @relenski.bsky.social !
Don’t miss this one!
podcasts.apple.com/us/podcast/u...
Don’t miss this one!
podcasts.apple.com/us/podcast/u...
12 tiny worlds
Podcast Episode · Unexplainable · 07/30/2025 · 38m
podcasts.apple.com
July 31, 2025 at 2:30 PM
So delighted that the #LTEE landed in my podcast feed today! Great job as always @relenski.bsky.social !
Don’t miss this one!
podcasts.apple.com/us/podcast/u...
Don’t miss this one!
podcasts.apple.com/us/podcast/u...
Reposted by Evan Waldron MD PhD
“keep politics out of kids movies”
disney in 1973:
disney in 1973:
July 20, 2025 at 2:30 AM
“keep politics out of kids movies”
disney in 1973:
disney in 1973:
Reposted by Evan Waldron MD PhD
Four panels from something I’m working on about Stephen Miller.
July 19, 2025 at 12:35 AM
Four panels from something I’m working on about Stephen Miller.
So if Aslan is the Turkish word for Lion, does that mean it was all just a giant pun about him being the REAL Turkish Delight?
July 11, 2025 at 3:23 AM
So if Aslan is the Turkish word for Lion, does that mean it was all just a giant pun about him being the REAL Turkish Delight?
As a biologist its always cool to observe the natural wildlife of the city
June 8, 2025 at 3:26 AM
As a biologist its always cool to observe the natural wildlife of the city
Please donate to help support one of the best and completely free resources for molecular genetics and cell biology available
#drosophila @flybase.bsky.social request emergency funding:
"As it stands, by the end of July, 2025, there will be no future updates to FlyBase, and in the worst case scenario access to the website will also be lost" => please donate!
www.philanthropy.cam.ac.uk/give-to-camb...
"As it stands, by the end of July, 2025, there will be no future updates to FlyBase, and in the worst case scenario access to the website will also be lost" => please donate!
www.philanthropy.cam.ac.uk/give-to-camb...
Drosophila Genetic Database
The Drosophila Genetic Database, FlyBase, is on the brink of collapse due to the sudden termination of the FlyBase NIH grant, which includes salaries for 5 literature curators based at the University ...
www.philanthropy.cam.ac.uk
June 3, 2025 at 5:00 PM
Please donate to help support one of the best and completely free resources for molecular genetics and cell biology available
From Carl Sagan's Demon Haunted World
May 8, 2025 at 7:08 AM
From Carl Sagan's Demon Haunted World
A common quip I hear about the difficulty of implementing phages as antibiotic is "the soviets tried that and it didn't work in the long run" (which I myself am guilty of saying too). But I mean, the soviets also failed at communism in the long run too, and that didn't stop anyone
May 3, 2025 at 7:22 AM
A common quip I hear about the difficulty of implementing phages as antibiotic is "the soviets tried that and it didn't work in the long run" (which I myself am guilty of saying too). But I mean, the soviets also failed at communism in the long run too, and that didn't stop anyone
Reposted by Evan Waldron MD PhD
For the feral #sheep on the remote St Kilda islands of #Scotland, long-term success hinges on the first year of life, especially for males. Here are the interesting reasons why: www.pnas.org/post/journal...
#ecology #EvolutionaryEcology #SexualDimorphism #SexualSelection
#ecology #EvolutionaryEcology #SexualDimorphism #SexualSelection
April 29, 2025 at 7:37 PM
For the feral #sheep on the remote St Kilda islands of #Scotland, long-term success hinges on the first year of life, especially for males. Here are the interesting reasons why: www.pnas.org/post/journal...
#ecology #EvolutionaryEcology #SexualDimorphism #SexualSelection
#ecology #EvolutionaryEcology #SexualDimorphism #SexualSelection
Good show Canada!
Heads up to my fellow Canadians - be sure to vote today! 🇨🇦🗳️🦦
April 29, 2025 at 4:08 AM
Good show Canada!
Great example of how things can get lost in translation. In the original French, Yoyo and Lulu use a pun to greet each since their respective nicknames are similar to common words for salutations, yo and salut. In English, only half the exchange still works.
April 17, 2025 at 10:57 AM
Great example of how things can get lost in translation. In the original French, Yoyo and Lulu use a pun to greet each since their respective nicknames are similar to common words for salutations, yo and salut. In English, only half the exchange still works.
Reposted by Evan Waldron MD PhD
Analysis of (p)ppGpp metabolism and signaling using a dynamic luminescent reporter https://www.biorxiv.org/content/10.1101/2025.04.16.649062v1
April 17, 2025 at 6:16 AM
Analysis of (p)ppGpp metabolism and signaling using a dynamic luminescent reporter https://www.biorxiv.org/content/10.1101/2025.04.16.649062v1
Calling both my NY senator's local and DC offices to express my displeasure and getting the machine. If they seriously are going to roll over and give this administration their seal of approval, rather than use the one option they have to stop them, then my vote is gone. Permanently.
March 14, 2025 at 7:03 PM
Calling both my NY senator's local and DC offices to express my displeasure and getting the machine. If they seriously are going to roll over and give this administration their seal of approval, rather than use the one option they have to stop them, then my vote is gone. Permanently.
I honestly wish the ghost of Michael DeBakey could return to champion for the NIH and put the fear of god into this administration
February 16, 2025 at 12:17 AM
I honestly wish the ghost of Michael DeBakey could return to champion for the NIH and put the fear of god into this administration