Trotz gleicher genetischer Ausstattung sehen manche Tiere der selben Art unterschiedlich aus. Warum? Forschende des @MPI_Bio in Tübingen fanden Antworten im "Monstermaul" und anderen Mündern von Fadenwürmern. Julia Hansen erklärt sie uns: https://www.laborjournal.de/editorials/2995.php#Evolution
I'm going to catch us up on some interesting science for a couple of days. A break from the daily horror show.
"Survival of the nicest: have we got evolution the wrong way round?
How humans, animals and even single-celled organisms cooperate to survive suggests there’s more to life than just competition, argues a cheering study of evolutionary biology." #cooperation#evolution https://www.nature.com/articles/d41586-024-00999-5
@noneuclideandreamer This looks fun, is there a specific endgoal? Like a game, a film, a publication... Or are you just experimenting and seeing where increasing your model's complexity takes you?
Happy to share the latest manuscript from our lab, in which we propose that eukaryotes evolved from a genomic chimera of Asgard archaea and giant viruses.
As bizarre as this all sounds, I believe we have strong phylogenetic evidence supporting this model. Importantly, this model has also been proposed before by Phil Bell based on first principles or eukaryotic organization and similarities between the nucleus and virus factories formed by viruses during infection
How cool is that. Been looking for a paper I read 15 or 20 years ago proposing a viral theory of DNA origin, whereby an inserted DNA virus on an RNA genome would then replicate the whole bacterial genome as DNA, and the bacterium became dependent on that insertion from then on. Will read yours and Phil Bell’s to see if I can find a reference to it.
Beautiful new study by Michael Bok, Macali & Garm on the high-resolution eyes of the enigmatic alciopid annelids, from Ponza island.
"Our results show that the eyes of alciopids possess the anatomical, morphological, and physiological properties requisite for high resolution tasks and object vision" https://doi.org/10.1016/j.cub.2024.02.055 #annelid#Evolution#eye@biology@mikebok
@noneuclideandreamer Bei dir ist das Substrat die Wärmeverteilung auf dem Planeten und das Wachstum ist der Wald.
In 2011 / 2012 hatte ich folgendes versucht:
Ein zellularer Automat ist nicht nur durch seine inneren Regeln determiniert, sondern er wächst auf einem Substrat. Das Substrat beeinflusst die Entwicklung des Automaten zusätzlich zu den Regeln. Damals ist mir das Projekt über den Kopf gewachsen.
Fürs Wachstum auf einem Substrat würden sich auch Reaktion Diffusion Gleichung anbieten.
So these plants evolved to live through big temperature differences(esp. downward) (which means it takes them more energy to grow) leading to... Endor?
We think this attack on understanding #humanorigins by Stefanos #Geroulanos is junk. Almost everything about it is wrong.
The idea that our bodies, minds and emotions are only affected by the last 5000 years is profoundly stupid -- once again social scientists trying to pretend #evolution doesn't exist (Am looking at #Graeber/Wengrow there).
Take this bit 🤦:
'But in reality, our bodies, our economic systems, our social relations, our family relations, and our politics have very little to do with this longer history [=species life] and a great deal to do with the much shorter one [=farming/patriarchy]'
This is a real mashup: our bodies, minds, hearts and souls have been shaped through thousands on thousands of generations of egalitarian nomadic lifestyle -- we need to know about that to challenge the constraints of heinous inequality in emerging class societies. Yes these shifted gender, economic and social relations of the past 5000 years. But we don't lose the cognitive and emotional skill set of being human overnight, or even in a few thousand years of warfare and patriarchy..
He notado que los sistemas de autenticación de muchas plataformas de correo en navegador terminan generando altos niveles de angustia y frustración a personas de edad avanzada.
Si esa persona #TeImporta, sientes con ellos esa angustia 😢
Ayudemos, con su consentimiento, a incrementar su acervo digital evitando experimentar esa frustración.
