#bilateria — Public Fediverse posts

Please watch my newest #animated #YouTube #video about the #Cambrianexplosion
https://youtu.be/EhUQfMcxUGs?si=5PALKW_J5fkkxOV6

It was a very #shortperiod in Earth's history, began ca. 541 million years ago and lasted only ~13-25 million years, during which giant #evolutionary leaps occurred in #animals. I.a.under influence of increased #oxygen levels, #Bilateria, primeval #Protostomia and #Deuterostomia evolved. We Tetrapoda much later derived from the latter.
©#StefanFWirth 2025

#Pics
©S F.Wirth,#AIassisted own work

`By generating localized Chordin sources in the Chordin morphant background, we showed that mobile Chordin is necessary and sufficient to establish a peak of BMP signaling opposite to Chordin source. These results provide evidence for BMP shuttling in a bilaterally symmetric cnidarian and suggest that BMP shuttling may have been functional in the potentially bilaterally symmetric cnidarian-bilaterian ancestor.`

https://www.science.org/doi/10.1126/sciadv.adu6347

#evolution #zoology #cnidaria #bilateria

#Evolution's recipe book: How '#copy_paste' #errors led to insect flight, octopus camouflage and human cognition.

##gene_expression #transcriptomics #bilateria

https://phys.org/news/2024-04-evolution-recipe-errors-insect-flight.html