Caleb Collar
@calebcollar.bsky.social
Software engineer. Biologist by education. Fan of healthy eating, protecting the environment, and becoming a sustainable planet. 🌍♻🌱🚀
Reposted by Caleb Collar
We are proud to unveil the world’s longest underwater timelapse, starting May 1st 2023 and running 1,000 days through January 28, 2026. This 10fps period covers summer 2023’s coral bleaching mortality event, but then recovering and growing through ‘24 & ‘25 into ‘26 #coralcitycamera
February 9, 2026 at 7:17 PM
We are proud to unveil the world’s longest underwater timelapse, starting May 1st 2023 and running 1,000 days through January 28, 2026. This 10fps period covers summer 2023’s coral bleaching mortality event, but then recovering and growing through ‘24 & ‘25 into ‘26 #coralcitycamera
Reposted by Caleb Collar
One hallmark of pseudoscience is an emphasis on confirmation rather than refutation.
Scientists are constantly and consistently trying to prove themselves wrong, whereas those who practice pseudoscience are more concerned with proving themselves right.
Scientists are constantly and consistently trying to prove themselves wrong, whereas those who practice pseudoscience are more concerned with proving themselves right.
February 3, 2026 at 12:53 PM
One hallmark of pseudoscience is an emphasis on confirmation rather than refutation.
Scientists are constantly and consistently trying to prove themselves wrong, whereas those who practice pseudoscience are more concerned with proving themselves right.
Scientists are constantly and consistently trying to prove themselves wrong, whereas those who practice pseudoscience are more concerned with proving themselves right.
Reposted by Caleb Collar
IC1848 - The Soul Nebula. I am officially blown away by the detail in my first real SHO image. This is just 30 mins on each filter. I can't wait to see the results when I get several hours on it.
ASI2600 MM, Esprit 100ED, Altair 3nm Ha, Sii and Oiii filters.
#astronomy #astrophotography
ASI2600 MM, Esprit 100ED, Altair 3nm Ha, Sii and Oiii filters.
#astronomy #astrophotography
January 24, 2026 at 3:00 PM
IC1848 - The Soul Nebula. I am officially blown away by the detail in my first real SHO image. This is just 30 mins on each filter. I can't wait to see the results when I get several hours on it.
ASI2600 MM, Esprit 100ED, Altair 3nm Ha, Sii and Oiii filters.
#astronomy #astrophotography
ASI2600 MM, Esprit 100ED, Altair 3nm Ha, Sii and Oiii filters.
#astronomy #astrophotography
Reposted by Caleb Collar
New Perspective out in Advanced Science 🎉 in collaboration with @alanrice.ie for @uniofbath.bsky.social 60th anniversary special issue.
advanced.onlinelibrary.wiley.com/doi/10.1002/...
We review nearly a decade of work asking:
how do gene regulatory networks rewire during evolution?
🧫🧵
advanced.onlinelibrary.wiley.com/doi/10.1002/...
We review nearly a decade of work asking:
how do gene regulatory networks rewire during evolution?
🧫🧵
Transcription Factor Promiscuity Drives Regulatory Rewiring and Evolvability in Gene Networks in Bacteria
This special issue marking the University of Bath's 60th anniversary offers an opportunity to reflect on nearly a decade of research into the evolution of gene regulatory networks (GRNs) from members...
advanced.onlinelibrary.wiley.com
January 23, 2026 at 2:22 PM
New Perspective out in Advanced Science 🎉 in collaboration with @alanrice.ie for @uniofbath.bsky.social 60th anniversary special issue.
advanced.onlinelibrary.wiley.com/doi/10.1002/...
We review nearly a decade of work asking:
how do gene regulatory networks rewire during evolution?
🧫🧵
advanced.onlinelibrary.wiley.com/doi/10.1002/...
We review nearly a decade of work asking:
how do gene regulatory networks rewire during evolution?
🧫🧵
Reposted by Caleb Collar
Flu is not “just like a cold”. Especially for children. Children less than 5 and kids of any age with certain underlying conditions are at higher risk of developing serious flu complications, including acute necrotizing encephalopathy (ANE), a potentially fatal complication of influenza.
Reports of Encephalopathy Among Children ...
This report describes cases of influenza-associated encephalopathy or encephalitis among children during 2010-11 through 2024-25 flu seasons.
www.cdc.gov
January 8, 2026 at 1:06 AM
Flu is not “just like a cold”. Especially for children. Children less than 5 and kids of any age with certain underlying conditions are at higher risk of developing serious flu complications, including acute necrotizing encephalopathy (ANE), a potentially fatal complication of influenza.
I just completed "Cafeteria" - Day 5 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/5
Day 5 - Advent of Code 2025
adventofcode.com
December 5, 2025 at 4:39 PM
I just completed "Cafeteria" - Day 5 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/5
I just completed "Printing Department" - Day 4 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/4
Day 4 - Advent of Code 2025
adventofcode.com
December 4, 2025 at 4:29 PM
I just completed "Printing Department" - Day 4 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/4
I've completed "Lobby" - Day 3 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/3
Day 3 - Advent of Code 2025
adventofcode.com
December 4, 2025 at 6:35 AM
I've completed "Lobby" - Day 3 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/3
I just completed "Gift Shop" - Day 2 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/2
Day 2 - Advent of Code 2025
adventofcode.com
December 4, 2025 at 5:24 AM
I just completed "Gift Shop" - Day 2 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/2
I just completed "Secret Entrance" - Day 1 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/1
Day 1 - Advent of Code 2025
adventofcode.com
December 4, 2025 at 4:28 AM
I just completed "Secret Entrance" - Day 1 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/1
Reposted by Caleb Collar
🆕 Our #LatestIssue is online now!
📚 nph.onlinelibrary.wiley.com/toc/14698137...
Highlights include:
🌱 #Leaf #evolution
🌱 #Light signal transduction in #plants
🌱 The path towards a unified trait space
📚 nph.onlinelibrary.wiley.com/toc/14698137...
Highlights include:
🌱 #Leaf #evolution
🌱 #Light signal transduction in #plants
🌱 The path towards a unified trait space
November 6, 2025 at 10:01 AM
🆕 Our #LatestIssue is online now!
📚 nph.onlinelibrary.wiley.com/toc/14698137...
Highlights include:
🌱 #Leaf #evolution
🌱 #Light signal transduction in #plants
🌱 The path towards a unified trait space
📚 nph.onlinelibrary.wiley.com/toc/14698137...
Highlights include:
🌱 #Leaf #evolution
🌱 #Light signal transduction in #plants
🌱 The path towards a unified trait space
Reposted by Caleb Collar
#PPOD: A beautiful picture of Jupiter taken by JunoCam onboard NASA's Juno spacecraft and processed by a citizen scientist. Numerous swirling storms are visible among the cloud tops, appearing in shades of white, tan, and blue. Credit: NASA / JPL-Caltech / SwRI / MSSS / Giulio Macrì 🧪 🔭
November 7, 2025 at 4:02 PM
#PPOD: A beautiful picture of Jupiter taken by JunoCam onboard NASA's Juno spacecraft and processed by a citizen scientist. Numerous swirling storms are visible among the cloud tops, appearing in shades of white, tan, and blue. Credit: NASA / JPL-Caltech / SwRI / MSSS / Giulio Macrì 🧪 🔭
Reposted by Caleb Collar
The Pleiades (M45) aka The Seven Sisters. A 4 panel wide field mosaic #astronomy #astrophotography @stormhour.com @photohour.bsky.social
November 2, 2025 at 2:55 AM
The Pleiades (M45) aka The Seven Sisters. A 4 panel wide field mosaic #astronomy #astrophotography @stormhour.com @photohour.bsky.social
Reposted by Caleb Collar
After many years in the making, here is our host range #phage paper with #ecology, #evolution and #biocontrol perspectives published in Molecular Ecology! @phimresearch.bsky.social @inrae-pv.bsky.social #PVBMT #JulianGarneau onlinelibrary.wiley.com/doi/10.1111/...
These are our key findings:
These are our key findings:
A Phylogenetic Host‐Range Index Reveals Ecological Constraints in Phage Specialisation and Virulence
Phages are typically known for having a limited host range, targeting particular strains within a bacterial species, but accurately measuring their specificity remains challenging. Factors like the g...
onlinelibrary.wiley.com
July 28, 2025 at 11:13 AM
After many years in the making, here is our host range #phage paper with #ecology, #evolution and #biocontrol perspectives published in Molecular Ecology! @phimresearch.bsky.social @inrae-pv.bsky.social #PVBMT #JulianGarneau onlinelibrary.wiley.com/doi/10.1111/...
These are our key findings:
These are our key findings:
Reposted by Caleb Collar
Excited to share our new paper in @cellreports.bsky.social that reshapes our understanding of chromosome organization's deep evolutionary roots! Our work dives into the origins of the machinery that structures our very genomes.
🔗: doi.org/10.1016/j.ce...
#Genomics #Evolution #CellBiology #LECA
🔗: doi.org/10.1016/j.ce...
#Genomics #Evolution #CellBiology #LECA
June 22, 2025 at 12:15 AM
Excited to share our new paper in @cellreports.bsky.social that reshapes our understanding of chromosome organization's deep evolutionary roots! Our work dives into the origins of the machinery that structures our very genomes.
🔗: doi.org/10.1016/j.ce...
#Genomics #Evolution #CellBiology #LECA
🔗: doi.org/10.1016/j.ce...
#Genomics #Evolution #CellBiology #LECA
Reposted by Caleb Collar
Nitrogen isotopes are a promising tool to reconstruct symbiosis in planktic foraminifera!
Check out our latest paper:
bg.copernicus.org/articles/22/...
Check out our latest paper:
bg.copernicus.org/articles/22/...
April 22, 2025 at 1:27 PM
Nitrogen isotopes are a promising tool to reconstruct symbiosis in planktic foraminifera!
Check out our latest paper:
bg.copernicus.org/articles/22/...
Check out our latest paper:
bg.copernicus.org/articles/22/...
Reposted by Caleb Collar
Our latest work on the bacterial Tol-Pal complex now published! Kudos & congrats to the brilliant @weeboont.bsky.social! We can (finally) confidently assign the true function of Tol-Pal in maintaining OM lipid homeostasis, independent of cell division! 👇 1/7 #microsky
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Primary role of the Tol-Pal complex in bacterial outer membrane lipid homeostasis - Nature Communications
The Tol-Pal complex is important for multiple cellular processes in Gram-negative bacteria, but its molecular functions remain unclear. Here, Tan & Chng provide experimental evidence supporting th...
www.nature.com
April 3, 2025 at 7:09 AM
Our latest work on the bacterial Tol-Pal complex now published! Kudos & congrats to the brilliant @weeboont.bsky.social! We can (finally) confidently assign the true function of Tol-Pal in maintaining OM lipid homeostasis, independent of cell division! 👇 1/7 #microsky
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Caleb Collar
🌟 Paper out in npj Unconventional Computing!
www.nature.com/articles/s44...
A system built with just a few neurons, yet able to solve a complex task — not by stacking layers or going deeper, but by embracing unconventional thinking.
This is neuromorphic to me!
www.nature.com/articles/s44...
A system built with just a few neurons, yet able to solve a complex task — not by stacking layers or going deeper, but by embracing unconventional thinking.
This is neuromorphic to me!
A neuromorphic multi-scale approach for real-time heart rate and state detection - npj Unconventional Computing
npj Unconventional Computing - A neuromorphic multi-scale approach for real-time heart rate and state detection
www.nature.com
April 2, 2025 at 3:32 PM
🌟 Paper out in npj Unconventional Computing!
www.nature.com/articles/s44...
A system built with just a few neurons, yet able to solve a complex task — not by stacking layers or going deeper, but by embracing unconventional thinking.
This is neuromorphic to me!
www.nature.com/articles/s44...
A system built with just a few neurons, yet able to solve a complex task — not by stacking layers or going deeper, but by embracing unconventional thinking.
This is neuromorphic to me!
Reposted by Caleb Collar
Wow! LASCO is a camera on the SOHO space-based solar observatory. It has an occulting disk that blocks the Sun and lets us see fainter material around it. This time-lapse lasts several days, and holy wow that comet!
January 16, 2025 at 9:19 PM
Wow! LASCO is a camera on the SOHO space-based solar observatory. It has an occulting disk that blocks the Sun and lets us see fainter material around it. This time-lapse lasts several days, and holy wow that comet!
Reposted by Caleb Collar
'The virus that causes COVID-19, known as SARS-CoV-2, may also make the brain vulnerable to Alzheimer's'.
It's very important to think through the population-level effects this will have in the next decade.
www.health.harvard.edu/mind-and-moo...
It's very important to think through the population-level effects this will have in the next decade.
www.health.harvard.edu/mind-and-moo...
Are some cases of Alzheimer's disease caused by infection? - Harvard Health
Some scientists believe that microbes might play a part in Alzheimer's disease development. There are several theories about how and why this occurs. Microbes that might be involved include certain...
www.health.harvard.edu
January 13, 2025 at 4:48 PM
'The virus that causes COVID-19, known as SARS-CoV-2, may also make the brain vulnerable to Alzheimer's'.
It's very important to think through the population-level effects this will have in the next decade.
www.health.harvard.edu/mind-and-moo...
It's very important to think through the population-level effects this will have in the next decade.
www.health.harvard.edu/mind-and-moo...
Reposted by Caleb Collar
Vaults: the cell’s biggest mystery. www.science.org/content/arti...
This biologist aims to solve the cell’s biggest mystery. Could it help cancer patients, too?
Four decades after his lab found odd, massive particles inside cells, Leonard Rome is still determined to figure out what “vaults” do
www.science.org
December 29, 2024 at 9:22 AM
Vaults: the cell’s biggest mystery. www.science.org/content/arti...
Reposted by Caleb Collar
In his book Normal Accidents, Charles Perrow argued that complex tightly-coupled systems are prone to unpredictable disruptions. He focused on technology but his warning about risks of interventions in complex systems clearly applies to ecosystems. IMO, assisted species introductions fit quadrant #2
December 28, 2024 at 7:55 PM
In his book Normal Accidents, Charles Perrow argued that complex tightly-coupled systems are prone to unpredictable disruptions. He focused on technology but his warning about risks of interventions in complex systems clearly applies to ecosystems. IMO, assisted species introductions fit quadrant #2
Reposted by Caleb Collar
Glucose metabolism pathway
December 27, 2024 at 4:45 AM
Glucose metabolism pathway
Reposted by Caleb Collar
NEW preprint!🥳
Orthogroups are a prerequisite for comparative genomics and Tree of Life inquiries
Introducing #OrthoHMM, software that improves the inference of orthogroups (blue in fig)
OrthoHMM may refine our understanding of genome evolution and the Tree of Life
🔗 tinyurl.com/4s9mwxz6
🧵 1/8
Orthogroups are a prerequisite for comparative genomics and Tree of Life inquiries
Introducing #OrthoHMM, software that improves the inference of orthogroups (blue in fig)
OrthoHMM may refine our understanding of genome evolution and the Tree of Life
🔗 tinyurl.com/4s9mwxz6
🧵 1/8
December 17, 2024 at 6:13 PM
NEW preprint!🥳
Orthogroups are a prerequisite for comparative genomics and Tree of Life inquiries
Introducing #OrthoHMM, software that improves the inference of orthogroups (blue in fig)
OrthoHMM may refine our understanding of genome evolution and the Tree of Life
🔗 tinyurl.com/4s9mwxz6
🧵 1/8
Orthogroups are a prerequisite for comparative genomics and Tree of Life inquiries
Introducing #OrthoHMM, software that improves the inference of orthogroups (blue in fig)
OrthoHMM may refine our understanding of genome evolution and the Tree of Life
🔗 tinyurl.com/4s9mwxz6
🧵 1/8
Reposted by Caleb Collar
The Pleiades, also known as M 45, are an open star cluster in the constellation Taurus. It contains many hot B-type stars and lies at a distance of about 440 light-years from earth. The Pleiades can easily be seen with the naked eye.
Credits: NASA, ESA and AURA/Caltech
Credits: NASA, ESA and AURA/Caltech
December 15, 2024 at 9:01 PM
The Pleiades, also known as M 45, are an open star cluster in the constellation Taurus. It contains many hot B-type stars and lies at a distance of about 440 light-years from earth. The Pleiades can easily be seen with the naked eye.
Credits: NASA, ESA and AURA/Caltech
Credits: NASA, ESA and AURA/Caltech