Benjamin Carr, Ph.D. 👨🏻‍💻🧬Sep 7, 2025
All Life on #Earth Comes From One Single Ancestor. And It's So Much Older Than We Thought.
Scientists have pushed back Last Universal #CommonAncestor (#LUCA) origin by hundreds of millions of years.
A study suggests that this organism likely lived on Earth only 400 million years after its formation.
Further analysis also shows that this life form likely sported an early immune system, which means it was probably fighting off viruses.
https://www.popularmechanics.com/science/environment/a65933876/one-single-ancestor-life-luca-discovery/
All Life on Earth Comes From One Single Ancestor. And It's So Much Older Than We Thought.

All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA—and it likely lived on Earth only 400 million years after its formation.

Popular Mechanics
Benjamin Carr, Ph.D. 👨🏻‍💻🧬Jan 22, 2025
Our last #commonancestor lived 4.2 billion years ago—perhaps hundreds of millions of years earlier than thought
#Genomes of diverse #microbes point to early #evolution of a rudimentary #immunesystem
The last ancestor shared by all living organisms was a microbe that lived 4.2 billion years ago, had a fairly large #genome encoding some 2600 proteins, enjoyed a diet of hydrogen gas and carbon dioxide, and harbored a rudimentary immune system for fighting off viral invaders.
https://www.science.org/content/article/our-last-common-ancestor-lived-4-2-billion-years-ago-perhaps-hundreds-millions-years
Steve Dustcircle 🌹Feb 23, 2024

All people with #blueeyes share a #commonancestor

https://www.simplemost.com/all-people-with-blue-eyes-share-common-ancestor/

Did you know #blue #eyes are actually a #geneticmutation?

All people with blue eyes share a common ancestor

Did you know blue eyes are actually a genetic mutation? Learn more about how our genes can 'turn off' eye color.

Simplemost
RobertJacksonAug 29, 2023

#AncestryDNA
#CommonAncestor

The labelling of Ancestry DNA matches as being with common ancestor has gone wonky these past few days.

I found matches on the matchlist without CAs that when clicked are listing CAs.

This is weird.

It would be rather nice if Ancestry were to establish a presence on Mastodon to see our observations.

#FamilyHistory

Liminal FictionAug 23, 2023

So basically, we're all jellyfish:

WRITER FUEL: After decades of debate, scientists believe they have identified the most recent ancestor of the sister to all animals via the novel use of an analytical technique.

https://www.limfic.com/2023/08/23/writer-fuel-were-all-jellyfish/

#LimFic #LiminalFiction #WriterFuel #Writers #Authors #WritersofMastodon #StoryIdeas #Biology #Evolution #CommonAncestor

Writer Fuel: We’re All Jellyfish

After decades of debate, scientists believe they have identified the most recent ancestor of the sister to all animals via the novel use of an analytical technique. The finding settles a central question about the evolution of the entire tree of animal life. All animal life is descended from a single common ancestor — a...

Liminal Fiction
Phys.orgJun 14, 2023

Referenced link: https://phys.org/news/2023-06-clues-complex-life-roots-common.html
Discuss on https://discu.eu/q/https://phys.org/news/2023-06-clues-complex-life-roots-common.html

Originally posted by Phys.org / @physorg_com: http://nitter.platypush.tech/physorg_com/status/1669024664402763791#m

New clues about origin of complex life trace roots to #commonancestor @utaustin @nature https://www.nature.com/articles/s41586-023-06186-2 https://phys.org/news/2023-06-clues-complex-life-roots-common.html

New clues about origin of complex life trace roots to common ancestor

Thor, the legendary Norse god from the mythological city of Asgard, is not alone. According to groundbreaking research published in the journal Nature, we humans—along with eagles, starfish, daisies and every complex organism on Earth—are, in a sense, Asgardians.

Phys.org
Show threadMwinyeleJan 10, 2023

@gcbias
Some #FoodForThought from the #researchpaper linked above💡💡💡

“Importantly, in my view, the term ‘genetically similar to’ also helps to avoid the assumption of homogeneity within labels; ‘similar to’ does not imply ‘same as’. Similarity-based sample descriptors also move us some way to acknowledging the continuous nature of #geneticvariation across #humangroups in our sample descriptions. I am more genetically similar to some samples than I am to others, but that does not imply that there are natural groupings. Nor do similarity-based labels imply how I, as an individual, might choose to identify or what distribution of environments I might experience. For example, a person may be genetically similar to 1000 #Genomes samples labeled Southern Asian, yet in itself this similarity does not identify them as Southern Asian, whereas stating that a person has ‘Southern Asian #geneticancestry ’ comes much closer to making that linkage in people’s minds.
Working out the #genealogicalhistory of individuals and of groups of people from around the world is a fascinating area of research, but it should not be the day job of the majority of researchers in the field of #humangenetics , who instead need accurate sample descriptors of current day #geneticdiversity that aid clear communication.”
END OF EXCERPT

~

Adding colour to #discourse with this screenshot attachment and link. Extraordinary future ahead in the field of human genetics and #humanidentity, in general. #TheLancet #AmbroiseWonkam #johnhopkinsuniversity #schoolofmedicine #geneticvariation #geneticmedicine #MckusickNathansInstituteofGeneticMedicine

https://www.thelancet.com/pdfs/journals/lancet/PIIS0140-6736(22)00880-7.pdf

https://doi.org/10.1016/S0140-6736(22)00880-7

Related
#AfricanGenomeVariationProject

#1000genomesproject #GhanaianGenome #OforiAcquah #geneticcounselling #yemaachibiotech #yemaachi #genomicdataset #Sicklecelldisease #malaria
#SarsCoV2 #researchgate
#geneticdata #geneticdisease #ethnicity #populationdescriptors #racialmakeup #racialclassification #ethnicclassification #nationalacademiesofsciencesengineeringand #biomedicalresearch #rx #med #ethnicorigins #dei #biodiversity #bloodbank #organdonor #geneticlandscapes #socialdeterminantsofhealth #clinicalgenetics #therapeutics #diagnostics #treatments #ancientdna #genealogy #nondarwinian #demography #demographics #polygenics #nationalinstitutesofhealth #nih #medicine #geneticancestor #humangenetics #biomedicine #biomed #racialidentity #ancestralidentity #culturalidentity #crt #criticalracetheory #anthropology #biobank #23andme #familytree #familyheritage #ancestralheritage #commonancestor #biomedical #populationbiology #geobiologie #geobiology #geneticmapping #blooddonor #blooddonation #populationhealth #admixedancestry #phenotype #phenotypingdata #phenotypedata #americanjournalofhumangenetics

Phys.orgSep 27, 2022

Referenced link: https://phys.org/news/2022-09-reconstruct-genome-common-ancestor-mammals.html
Discuss on https://discu.eu/q/https://phys.org/news/2022-09-reconstruct-genome-common-ancestor-mammals.html

Originally posted by Phys.org / @[email protected]: https://twitter.com/physorg_com/status/1574859994251595827#m

Researchers reconstruct the genome of the #commonancestor of all #mammals @PNASNews https://pnas.org/doi/full/10.1073/pnas.2209139119 https://phys.org/news/2022-09-reconstruct-genome-common-ancestor-mammals.html

Researchers reconstruct the genome of the common ancestor of all mammals

Every modern mammal, from a platypus to a blue whale, is descended from a common ancestor that lived about 180 million years ago. We don't know a great deal about this animal, but the organization of its genome has now been computationally reconstructed by an international team of researchers. The work is published Sept. 30 in Proceedings of the National Academy of Sciences.

Phys.org
Soh Kam YungMar 19, 2020

Fascinating findings. A write-up of the 'Wonderchicken', which has features that resemble ducks and chickens and show their shared a common ancestor "sometime near the very end of Cretaceous times, known as the K–Pg boundary."

https://natureecoevocommunity.nature.com/users/363813-daniel-j-field/posts/61406-how-we-found-the-world-s-oldest-modern-bird-skull

#Palaeontology #Birds #Fossils #Chickens #Ducks #CommonAncestor

How we found the world's oldest modern bird skull

My colleagues and I recently named and reported a remarkable new bird fossil from the end of the Age of Dinosaurs. The fossil appears to be the oldest uncontroversial record of a modern bird yet discovered.