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John Vaccaro (johniac)SciTech Chronicles. . . . . . . . .April 22nd, 2025<a href="https://bit.ly/stc042225" rel="nofollow noopener" translate="no" target="_blank">https://bit.ly/stc042225</a><a href="https://mastodon.social/tags/pour" class="mention hashtag" rel="nofollow noopener" target="_blank">#pour</a>-over <a href="https://mastodon.social/tags/avalanches" class="mention hashtag" rel="nofollow noopener" target="_blank">#avalanches</a> <a href="https://mastodon.social/tags/flavor" class="mention hashtag" rel="nofollow noopener" target="_blank">#flavor</a> <a href="https://mastodon.social/tags/gooseneck" class="mention hashtag" rel="nofollow noopener" target="_blank">#gooseneck</a> <a href="https://mastodon.social/tags/interfaces" class="mention hashtag" rel="nofollow noopener" target="_blank">#interfaces</a> #"emergent properties" <a href="https://mastodon.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> #"Metabolic Topography" <a href="https://mastodon.social/tags/capacity" class="mention hashtag" rel="nofollow noopener" target="_blank">#capacity</a> <a href="https://mastodon.social/tags/splits" class="mention hashtag" rel="nofollow noopener" target="_blank">#splits</a> #"Agentic AI" #"RF Plant" #"algal blooms" #"Greenland Ice Sheet" <a href="https://mastodon.social/tags/phosphorus" class="mention hashtag" rel="nofollow noopener" target="_blank">#phosphorus</a> <a href="https://mastodon.social/tags/nitrogen" class="mention hashtag" rel="nofollow noopener" target="_blank">#nitrogen</a> Tags: <a href="https://mastodon.social/tags/volatile" class="mention hashtag" rel="nofollow noopener" target="_blank">#volatile</a>-rich <a href="https://mastodon.social/tags/controlled" class="mention hashtag" rel="nofollow noopener" target="_blank">#controlled</a>-source <a href="https://mastodon.social/tags/seismic" class="mention hashtag" rel="nofollow noopener" target="_blank">#seismic</a> <a href="https://mastodon.social/tags/imaging" class="mention hashtag" rel="nofollow noopener" target="_blank">#imaging</a>

Victoria Stuart 🇨🇦 🏳️‍⚧️Eukaryotic cell emerged as evolutionary algorithmic phase transition <a href="https://www.sciencedaily.com/releases/2025/04/250421163507.htm" rel="nofollow noopener" translate="no" target="_blank">https://www.sciencedaily.com/releases/2025/04/250421163507.htm</a> <a href="https://press.uni-mainz.de/eukaryotic-cell-emerged-as-evolutionary-algorithmic-phase-transition/" rel="nofollow noopener" translate="no" target="_blank">https://press.uni-mainz.de/eukaryotic-cell-emerged-as-evolutionary-algorithmic-phase-transition/</a> <a href="https://www.pnas.org/doi/10.1073/pnas.2422968122" rel="nofollow noopener" translate="no" target="_blank">https://www.pnas.org/doi/10.1073/pnas.2422968122</a>* compromise: conserved process of gene growth vs. change in genetic regulation which incorporated noncoding sequences * increase in cellular complexity occurred continuously * in abrupt manner at critical point unlocked path toward multicellular organisms<a href="https://mastodon.social/tags/Eukaryotes" class="mention hashtag" rel="nofollow noopener" target="_blank">#Eukaryotes</a> <a href="https://mastodon.social/tags/evolution" class="mention hashtag" rel="nofollow noopener" target="_blank">#evolution</a> <a href="https://mastodon.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> <a href="https://mastodon.social/tags/PhaseTransition" class="mention hashtag" rel="nofollow noopener" target="_blank">#PhaseTransition</a>

Victoria Stuart 🇨🇦 🏳️‍⚧️[biological evolution] Whole-genome duplication drives long-term adaptation <a href="https://www.sciencedaily.com/releases/2025/03/250326221649.htm" rel="nofollow noopener" translate="no" target="_blank">https://www.sciencedaily.com/releases/2025/03/250326221649.htm</a> <a href="https://news.ycombinator.com/item?id=43515443" rel="nofollow noopener" translate="no" target="_blank">https://news.ycombinator.com/item?id=43515443</a>Genome duplication in a long-term multicellularity evolution experiment <a href="https://www.nature.com/articles/s41586-025-08689-6" rel="nofollow noopener" translate="no" target="_blank">https://www.nature.com/articles/s41586-025-08689-6</a><a href="https://mastodon.social/tags/yeast" class="mention hashtag" rel="nofollow noopener" target="_blank">#yeast</a> <a href="https://mastodon.social/tags/MolecularBiology" class="mention hashtag" rel="nofollow noopener" target="_blank">#MolecularBiology</a> <a href="https://mastodon.social/tags/evolution" class="mention hashtag" rel="nofollow noopener" target="_blank">#evolution</a> <a href="https://mastodon.social/tags/genetics" class="mention hashtag" rel="nofollow noopener" target="_blank">#genetics</a> <a href="https://mastodon.social/tags/MolecularGenetics" class="mention hashtag" rel="nofollow noopener" target="_blank">#MolecularGenetics</a> <a href="https://mastodon.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> <a href="https://mastodon.social/tags/adaptation" class="mention hashtag" rel="nofollow noopener" target="_blank">#adaptation</a> <a href="https://mastodon.social/tags/genomics" class="mention hashtag" rel="nofollow noopener" target="_blank">#genomics</a> <a href="https://mastodon.social/tags/GenomeDuplication" class="mention hashtag" rel="nofollow noopener" target="_blank">#GenomeDuplication</a> <a href="https://mastodon.social/tags/CellBiology" class="mention hashtag" rel="nofollow noopener" target="_blank">#CellBiology</a>

CellBioNews<a href="https://scientificnetwork.de/tags/3D" class="mention hashtag" rel="nofollow noopener" target="_blank">#3D</a> structure of the social <a href="https://scientificnetwork.de/tags/amoeba" class="mention hashtag" rel="nofollow noopener" target="_blank">#amoeba</a> <a href="https://scientificnetwork.de/tags/genome" class="mention hashtag" rel="nofollow noopener" target="_blank">#genome</a> sheds light on the transition to <a href="https://scientificnetwork.de/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a>.<a href="https://scientificnetwork.de/tags/Dictyostelium" class="mention hashtag" rel="nofollow noopener" target="_blank">#Dictyostelium</a> <a href="https://scientificnetwork.de/tags/chromosomes" class="mention hashtag" rel="nofollow noopener" target="_blank">#chromosomes</a> <a href="https://scientificnetwork.de/tags/chromatin_looping" class="mention hashtag" rel="nofollow noopener" target="_blank">#chromatin_looping</a> <a href="https://scientificnetwork.de/tags/RNA_polymerase" class="mention hashtag" rel="nofollow noopener" target="_blank">#RNA_polymerase</a> <a href="https://phys.org/news/2025-02-3d-social-amoeba-genome-transition.html" rel="nofollow noopener" translate="no" target="_blank">https://phys.org/news/2025-02-3d-social-amoeba-genome-transition.html</a>

Lukas VFN 🇪🇺Tiny microbe colonies communicate to coordinate their behavior <a href="https://www.uib.no/en/michaelsarscentre/175104/tiny-microbe-colonies-communicate-coordinate-their-behavior" rel="nofollow noopener" translate="no" target="_blank">https://www.uib.no/en/michaelsarscentre/175104/tiny-microbe-colonies-communicate-coordinate-their-behavior</a>Electrical signaling and coordinated behavior in the closest relative of animals <a href="https://www.science.org/doi/10.1126/sciadv.adr7434" rel="nofollow noopener" translate="no" target="_blank">https://www.science.org/doi/10.1126/sciadv.adr7434</a>"A new study reveals evidence of electrical signaling and coordinated behavior in <a href="https://scholar.social/tags/choanoflagellates" class="mention hashtag" rel="nofollow noopener" target="_blank">#choanoflagellates</a>, the closest living relatives of <a href="https://scholar.social/tags/animals" class="mention hashtag" rel="nofollow noopener" target="_blank">#animals</a>. This elaborate example of cell communication offers key insights into the early <a href="https://scholar.social/tags/evolution" class="mention hashtag" rel="nofollow noopener" target="_blank">#evolution</a> of animal <a href="https://scholar.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> and nervous systems."<a href="https://scholar.social/tags/Protists" class="mention hashtag" rel="nofollow noopener" target="_blank">#Protists</a> <a href="https://scholar.social/tags/Microbes" class="mention hashtag" rel="nofollow noopener" target="_blank">#Microbes</a>

Pawel BurkhardtThrilled to see <a href="https://biologists.social/tags/choanoflagellates" class="mention hashtag" rel="nofollow noopener" target="_blank">#choanoflagellates</a> on the cover of Science Advances 🤩. Our latest work "Electrical signaling and coordinated behavior in the closest relative of animals" out now. Link: <a href="https://www.science.org/doi/10.1126/sciadv.adr7434" rel="nofollow noopener" translate="no" target="_blank">https://www.science.org/doi/10.1126/sciadv.adr7434</a> Work supported by @MSarsCentre, @UiB, <a href="https://biologists.social/tags/evolution" class="mention hashtag" rel="nofollow noopener" target="_blank">#evolution</a> <a href="https://biologists.social/tags/neuron" class="mention hashtag" rel="nofollow noopener" target="_blank">#neuron</a> <a href="https://biologists.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> 👏👏👏 Jeffrey Colgren

CompulsoryAccount7746In animals, Sox genes turn differentiated cells into stem cells. Scientists swapped a homologous gene from unicellular life into mouse cells. Still became stem cells. Injected in an embryo, the stems helped build a patchy chimeric mouse!~Choanoflagellates—being single-celled—don't have stem cells, but they have these genes to control basic cellular processes that animals repurposed for building bodies.~ <a href="https://www.sciencedaily.com/releases/2024/11/241118125716.htm" rel="nofollow noopener" translate="no" target="_blank">https://www.sciencedaily.com/releases/2024/11/241118125716.htm</a> <a href="https://www.nature.com/articles/s41467-024-54152-x" rel="nofollow noopener" translate="no" target="_blank">https://www.nature.com/articles/s41467-024-54152-x</a><a href="https://masto.ai/tags/Sox" class="mention hashtag" rel="nofollow noopener" target="_blank">#Sox</a> <a href="https://masto.ai/tags/Multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#Multicellularity</a> <a href="https://masto.ai/tags/StemCells" class="mention hashtag" rel="nofollow noopener" target="_blank">#StemCells</a> <a href="https://masto.ai/tags/EvoDevo" class="mention hashtag" rel="nofollow noopener" target="_blank">#EvoDevo</a>

Brian WadeThe bioenergetic cost of building a metazoan <a href="https://mastodon.social/tags/evolution" class="mention hashtag" rel="nofollow noopener" target="_blank">#evolution</a> <a href="https://mastodon.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> <a href="https://mastodon.social/tags/complexity" class="mention hashtag" rel="nofollow noopener" target="_blank">#complexity</a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener" target="_blank">#science</a><a href="https://www.pnas.org/doi/10.1073/pnas.2414742121" rel="nofollow noopener" translate="no" target="_blank">https://www.pnas.org/doi/10.1073/pnas.2414742121</a>

Lukas VFN 🇪🇺Hourglass model of complex multicellularity found in brown algae <a href="https://phys.org/news/2024-10-hourglass-complex-multicellularity-brown-algae.html" rel="nofollow noopener" translate="no" target="_blank">https://phys.org/news/2024-10-hourglass-complex-multicellularity-brown-algae.html</a> paper: <a href="https://www.nature.com/articles/s41586-024-08059-8" rel="nofollow noopener" translate="no" target="_blank">https://www.nature.com/articles/s41586-024-08059-8</a> "Complex <a href="https://scholar.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> evolved independently in various eukaryotic lineages, including <a href="https://scholar.social/tags/animals" class="mention hashtag" rel="nofollow noopener" target="_blank">#animals</a>, <a href="https://scholar.social/tags/plants" class="mention hashtag" rel="nofollow noopener" target="_blank">#plants</a>, <a href="https://scholar.social/tags/fungi" class="mention hashtag" rel="nofollow noopener" target="_blank">#fungi</a>, and <a href="https://scholar.social/tags/algae" class="mention hashtag" rel="nofollow noopener" target="_blank">#algae</a>... According to the hourglass model of embryonic development, early and late stages of development exhibit morphological and molecular diversity, while a mid-embryonic phase remains highly conserved across species."

Lukas VFN 🇪🇺We are family: Tracing the <a href="https://scholar.social/tags/evolution" class="mention hashtag" rel="nofollow noopener" target="_blank">#evolution</a> of animals <a href="https://knowablemagazine.org/content/article/living-world/2024/evolution-of-multicelled-life" rel="nofollow noopener" translate="no" target="_blank">https://knowablemagazine.org/content/article/living-world/2024/evolution-of-multicelled-life</a>"To understand the origins of muticelled life, researchers are studying a motley assortment of simpler animal relatives. The commonalities they’re unearthing offer a trove of clues about our mutual past... Researchers speculate that something major must have happened in the world to make teaming up such a good deal. It must be environmental, to a large degree" <a href="https://scholar.social/tags/protists" class="mention hashtag" rel="nofollow noopener" target="_blank">#protists</a> <a href="https://scholar.social/tags/animals" class="mention hashtag" rel="nofollow noopener" target="_blank">#animals</a> <a href="https://scholar.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> <a href="https://scholar.social/tags/microbes" class="mention hashtag" rel="nofollow noopener" target="_blank">#microbes</a>

Matt Hodgkinson"As seawater gets colder, it grows thicker. It’s basic physics — the density and viscosity of water molecules rises as the temperature drops. Under the conditions of Snowball Earth, the ocean would have been twice or even four times as viscous as it was before the planet froze over. Simpson wondered what it would have been like to be a microscopic organism in the ocean during Snowball Earth."<a href="https://www.quantamagazine.org/the-physics-of-cold-water-may-have-jump-started-complex-life-20240724/" rel="nofollow noopener" translate="no" target="_blank">https://www.quantamagazine.org/the-physics-of-cold-water-may-have-jump-started-complex-life-20240724/</a><a href="https://scicomm.xyz/tags/BioPhysics" class="mention hashtag" rel="nofollow noopener" target="_blank">#BioPhysics</a> <a href="https://scicomm.xyz/tags/SnowballEarth" class="mention hashtag" rel="nofollow noopener" target="_blank">#SnowballEarth</a> <a href="https://scicomm.xyz/tags/ComplexLife" class="mention hashtag" rel="nofollow noopener" target="_blank">#ComplexLife</a> <a href="https://scicomm.xyz/tags/Multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#Multicellularity</a> <a href="https://scicomm.xyz/tags/EvolutionaryBiology" class="mention hashtag" rel="nofollow noopener" target="_blank">#EvolutionaryBiology</a>

Matt WillemsenSnowball Earth’s Environmental Conditions Gave Multicellular Organisms Evolutionary Advantage <a href="https://www.sci.news/paleontology/snowball-earth-multicellularity-13063.html" rel="nofollow noopener" translate="no" target="_blank">https://www.sci.news/paleontology/snowball-earth-multicellularity-13063.html</a> <a href="https://mastodon.social/tags/geology" class="mention hashtag" rel="nofollow noopener" target="_blank">#geology</a> <a href="https://mastodon.social/tags/biology" class="mention hashtag" rel="nofollow noopener" target="_blank">#biology</a> <a href="https://mastodon.social/tags/Cryogenian" class="mention hashtag" rel="nofollow noopener" target="_blank">#Cryogenian</a> <a href="https://mastodon.social/tags/SnowballEarth" class="mention hashtag" rel="nofollow noopener" target="_blank">#SnowballEarth</a> <a href="https://mastodon.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a>

katch wreck"By testing a series of alternative—& commonly debated—hypotheses, we demonstrate how <a href="https://mastodon.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> was likely acquired differently in <a href="https://mastodon.social/tags/eukaryotes" class="mention hashtag" rel="nofollow noopener" target="_blank">#eukaryotes</a> & <a href="https://mastodon.social/tags/prokaryotes" class="mention hashtag" rel="nofollow noopener" target="_blank">#prokaryotes</a> owing to selective differences on their size due to the biophysical & <a href="https://mastodon.social/tags/metabolic" class="mention hashtag" rel="nofollow noopener" target="_blank">#metabolic</a> regimes they inhabit: decreasing temperatures... instigated by the onset of glaciations generated selective pressures towards smaller sizes in organisms in the diffusive regime & towards larger sizes in motile heterotrophs"<a href="https://royalsocietypublishing.org/doi/10.1098/rspb.2023.2767" rel="nofollow noopener" translate="no" target="_blank">https://royalsocietypublishing.org/doi/10.1098/rspb.2023.2767</a>

Brian WadeFossil-calibrated molecular clock data enable reconstruction of steps leading to differentiated multicellularity and anisogamy in the Volvocine algae <a href="https://mastodon.social/tags/evolution" class="mention hashtag" rel="nofollow noopener" target="_blank">#evolution</a> <a href="https://mastodon.social/tags/fossils" class="mention hashtag" rel="nofollow noopener" target="_blank">#fossils</a> <a href="https://mastodon.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> <a href="https://mastodon.social/tags/algae" class="mention hashtag" rel="nofollow noopener" target="_blank">#algae</a> <a href="https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-024-01878-1" rel="nofollow noopener" translate="no" target="_blank">https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-024-01878-1</a>

Brian WadeThe evolution of multicellularity in macroalgae involved genes for cell adhesion, extracellular matrix formation, cell polarity, transport, and cell differentiation. <a href="https://mastodon.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> <a href="https://mastodon.social/tags/algae" class="mention hashtag" rel="nofollow noopener" target="_blank">#algae</a> <a href="https://mastodon.social/tags/evolution" class="mention hashtag" rel="nofollow noopener" target="_blank">#evolution</a> <a href="https://mastodon.social/tags/EvolutionaryBiology" class="mention hashtag" rel="nofollow noopener" target="_blank">#EvolutionaryBiology</a><a href="https://doi.org/10.1016/j.molp.2024.03.011" rel="nofollow noopener" translate="no" target="_blank">https://doi.org/10.1016/j.molp.2024.03.011</a>

Lukas VFN 🇪🇺<a href="https://scholar.social/tags/Macroalgae" class="mention hashtag" rel="nofollow noopener" target="_blank">#Macroalgae</a> <a href="https://scholar.social/tags/genetics" class="mention hashtag" rel="nofollow noopener" target="_blank">#genetics</a> study sheds light on how seaweed became multicellular <a href="https://phys.org/news/2024-04-macroalgae-genetics-seaweed-multicellular.html" rel="nofollow noopener" translate="no" target="_blank">https://phys.org/news/2024-04-macroalgae-genetics-seaweed-multicellular.html</a>Macroalgal deep <a href="https://scholar.social/tags/genomics" class="mention hashtag" rel="nofollow noopener" target="_blank">#genomics</a> illuminate multiple paths to aquatic, photosynthetic multicellularity <a href="https://www.cell.com/molecular-plant/fulltext/S1674-2052(24)00084-4" rel="nofollow noopener" translate="no" target="_blank">https://www.cell.com/molecular-plant/fulltext/S1674-2052(24)00084-4</a> "Three lineages of <a href="https://scholar.social/tags/algae" class="mention hashtag" rel="nofollow noopener" target="_blank">#algae</a> developed <a href="https://scholar.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> independently and during very different time periods by acquiring genes that enable cell adhesion, extracellular matrix formation, and cell differentiation"

Brian WadeMixed clonal-aggregative multicellularity entrained by extreme salinity fluctuations in a close relative of animals <a href="https://mastodon.social/tags/evolution" class="mention hashtag" rel="nofollow noopener" target="_blank">#evolution</a> <a href="https://mastodon.social/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a> <a href="https://www.biorxiv.org/content/10.1101/2024.03.25.586565v1" rel="nofollow noopener" translate="no" target="_blank">https://www.biorxiv.org/content/10.1101/2024.03.25.586565v1</a>

CellBioNewsWhy <a href="https://scientificnetwork.de/tags/eukaryotes" class="mention hashtag" rel="nofollow noopener" target="_blank">#eukaryotes</a>, not <a href="https://scientificnetwork.de/tags/bacteria" class="mention hashtag" rel="nofollow noopener" target="_blank">#bacteria</a>, evolved complex <a href="https://scientificnetwork.de/tags/multicellularity" class="mention hashtag" rel="nofollow noopener" target="_blank">#multicellularity</a>.<a href="https://scientificnetwork.de/tags/genomic_expansion" class="mention hashtag" rel="nofollow noopener" target="_blank">#genomic_expansion</a> <a href="https://scientificnetwork.de/tags/cyanobacteria" class="mention hashtag" rel="nofollow noopener" target="_blank">#cyanobacteria</a><a href="https://asm.org/Articles/2024/March/Eukaryotes-Evolved-Multicellularity-Not-Bacteria" rel="nofollow noopener" translate="no" target="_blank">https://asm.org/Articles/2024/March/Eukaryotes-Evolved-Multicellularity-Not-Bacteria</a>

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