Notices tagged with evolution

Published #onthisday 165 years ago, "On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life" by Charles Darwin created the foundations of evolutionary biology, which today is one of the organizing principles of modern biology.

[Image credit: https://commons.wikimedia.org/wiki/File:Origin_of_Species.jpg]

#biology #evolution #naturalselection #darwin

Stem cells: Scientists recreate mouse from gene older than animal life
https://www.sciencedaily.com/releases/2024/11/241118125716.htm

* unicellular Sox & POU transcription factors
* creation of mouse stem cells capable of generating fully dev. mouse
* reshapes understanding of genetic/evolutionary origins of stem cells
* poss. critical for advent of stem cells & animal multicellularity

Emergence of Sox & POU transcription factors predates origins of animal stem cells
https://www.nature.com/articles/s41467-024-54152-x

#StemCells #evolution #MolecularBiology

#Rats and #humans diverged in #Evolution at least 75 million years ago, and small rodents are the #potatochips of the #NaturalWorld, yet see how similar our #EmotionalLives are. 🐭🕺😄 https://theconversation.com/im-a-neuroscientist-who-taught-rats-to-drive-their-joy-suggests-how-anticipating-fun-can-enrich-human-life-239029

Saber-toothed kitten frozen in Siberian ice reveals new details about species
https://www.science.org/content/article/saber-toothed-kitten-frozen-siberian-ice-reveals-new-details-about-species

* ice mummy preserves extinct cat f. claws to paws
* late Pleistocene, 35,500 - 37,000 years ago

Mummy of a juvenile sabre-toothed cat Homotherium latidens from the Upper Pleistocene of Siberia
https://www.nature.com/articles/s41598-024-79546-1

#fossil #IceMummy #sabretooth #kitten #ecology #evolution #palaeontology #zoology

I recently learned something about selective breeding of chickens:

If you repeatedly select for the individual chicken that lays the most eggs, generation after generation, then egg production goes _down_. This is because the chook that lays the most eggs is the dominant chook, and selecting for dominance results in a flock of chickens that are hyper-aggressive and waste a lot of energy fighting.

Conversely, if you selectively breed chickens at the level of the flock, selecting for flocks that have overall better egg production, then you select for _cooperative_ flocks of chickens and this is the best way to optimise overall egg production*.

I think that humans have been selected-for at the group level more than the individual level, and this is why it's so critical to preserve tolerance and teamwork at the societal level. Groups of humans that can't cooperate are out-competed by groups that can.

* I'm not advocating for chicken factory farming 🙂

#teamwork #evolution #society

While considering the high flights and fantastic crashes of high-concept start-ups, know this...

This is how #CompetitiveSystems learn: the language of #Death. In this case corporate death.

#Politics careens from one failure to the next. Movement death, often learning something, but it only lasts a while. Because #WeAreGoldfish, there is more #chaos than #progress.

Biological #evolution: same thing. Individual deaths, population death, species death. Evolution is not attracted to intelli...

Please retoot / repost!!

We recruit a Technical Assistant @Mol_Ecol @uniinnsbruck, permanent position, 30 h / week 🏔️🌄

Announcement & application:
https://lfuonline.uibk.ac.at/public/karriereportal.details?asg_id_in=14665

Info on Working Group: https://molecular-ecology.at

#ecology #evolution #MolcularEcology #Austria

Top 10 discoveries about ancient people from DNA in 2023
https://johnhawks.net/weblog/the-top-10-discoveries-about-ancient-people-from-dna-in-2023
https://news.ycombinator.com/item?id=42033913

#DNA #AncientDNA #MolecularGenetics #evolution #EvolutionaryGenetics #polymorphisms #SNPs #anthropology #history

Friends, what #email client are you running on #Linux these days?

I've been running #Thunderbird since... the beginning?

The last few weeks I've tried a few other clients. #Evolution is decent but the GUI is stuck in the past, rough edges, clunky.

#Geary is ok. More modern but a little simplistic and I can't seem to find a way to disable threading (do not like). Graphically slow as well it seems.

What graphical client are you using that you like? What is it that you like about it?

Boost?

How Rumble went from a family-friendly Canadian startup to a megaphone for U.S. election deniers

#PetVideos #ElectionDeniers #Investments #Evolution #CanadianStartup

https://www.cbc.ca/news/world/rumble-trump-election-1.7366556?cmp=rss

Guten Morgen - Tässle Kaffee ☕️?

Über Demografie und Zeit, die Evolution von Religion diskutiere ich aufgrund ihrer Bedeutung immer wieder gerne. Unangenehm finde ich jedoch Typen, die über die Körper und Schwangerschaften von Frauen verfügen wollen. Hier ein inhaltlicher Blogpost mit Kante & der Bitte: Bringt Euch ein. #Demografie #Zeit #Evolution #Religion https://scilogs.spektrum.de/natur-des-glaubens/mehr-oder-weniger-kinder-in-die-welt-setzen-anthropodizee-systemtheorie-religionsdemografie/

#evolution #biblestudy #religionispoison #cainandabel #science

@shapr @amszmidt To be fair, #thunderbird and #evolution also block images unless you tell them not to.

The discovery of the world’s oldest human footprint in South Africa profoundly connects us to our ancient past. Over 150,000 years ago, someone walked across the Earth, leaving a trace that has survived millennia. It’s a reminder of our shared journey as a species—how we’ve adapted, endured, and thrived. These footprints echo not just history but the resilience and continuity of human life.

#Archaeology #HumanHistory #SouthAfrica #AncientHumans #Evolution #Footprints

https://www.atlasobscura.com/articles/oldest-human-footprint-south-africa#:~:text=The%20153%2C000%20year%20old%20track,years%20and%20117%2C000%20years%20respectively.

We are excited to attend ICRA’s 40th anniversary next week in Rotterdam! As the largest robotics conference, it offers a fantastic opportunity to reflect on the evolution of robotics and automation, share experiences, and discuss success stories. 🤖✨

More information at https://icra40.ieee.org/

#Coresense #HorizonEurope #Robots #Robotics #Conference #Software #Innovation #AI #Evolution

Archaeoethnologica: Genetics for Linguist - Book / Genética para Linguistas - Livro

+INFO in: https://archaeoethnologica.blogspot.com/2024/07/genetica-para-linguistas-livro.html

#Genetics #Linguistics #evolution #paleogenetics #books #paleolinguistics

Guten Morgen - Tässle Kaffee ☕?

Die gestrige Blog- und Mastodon-Debatten rund um "Dune" von Frank Herbert haben wieder viele Fragen nach der Evolution von Religion aufgebracht. Warum sind Mythen so mächtig? Sind sie nur gefährlich, nutzlos oder gar notwendig? Hier eine Quarks-Sendung dazu, in der ich einst gerne mitwirkte. #Evolution #Religion #Funktion #Gefahren #Nutzen #Wissenschaft #Quarks https://youtu.be/Iy9J9ddelVw?si=flNMyiqHOMb4rPqs

Streetlights running all night makes leaves so tough that insects can't eat them, threatening the food chain

https://phys.org/news/2024-08-streetlights-night-tough-insects-threatening.html

#biodiversity #biodiversitydecline #plants #photosynthesis #lightpollution #anthropocene #urban #insects #insectextinction #evolution