Brain Evolution News
@brainevolutionnews.bsky.social
590 followers 1.3K following 20 posts
Brain Evolution in the News posted here for you! For events & opportunities in brain evolution research follow @EurNetBrainEvoR.bsky.social http://brainevolutionnews.blogspot.com
Posts Media Videos Starter Packs
Reposted by Brain Evolution News
It's #NationalFossilDay here in the USA, so here's a photo of our T. rex brain endocast based on a US national fossil—AMNH 5117. The surprise was to see it on exhibit in Japan at the Fukui Prefectural Dinosaur Museum. Feel free to print one of your own: skfb.ly/Mqsq ! 🦖
Witmer with a 3D print of the brain endocast of Tyrannosaurus rex on exhibit at the Fukui Prefecture Dinosaur Museum in Fukui, Japan, based on  CT scanning of AMNH 5117. 3D print of the brain endocast of Tyrannosaurus rex on exhibit at the Fukui Prefecture Dinosaur Museum in Fukui, Japan, based on  CT scanning of AMNH 5117.
We published on the braincase and endocast of tyrannosaurs way back in 2009: https://bit.ly/47fChUf More on National Fossil Day here: https://www.nps.gov/subjects/fossilday/index.htm
Reposted by Brain Evolution News
Thrilled to share that I’ve successfully defended my PhD thesis on human brain evolution at @humantechnopole.bsky.social 🎓 A heartfelt thank you to everyone who has been part of this journey. Excited for what comes next!
Image credits: Federica Marinaro
Reposted by Brain Evolution News
One motivation behind this review was that recently, I learned that neurobiologists knew of Ludwig Edinger while paleontologists knew of Tilly Edinger, his daugther. It made me realized how much, we had been disconnected from one another. I hope that this review brings these fields closer again ☺️
Reposted by Brain Evolution News
Can Only Meat Machines be Conscious? New paper in Trends in Cognitive Sciences, free download until November 26 with this URL: authors.elsevier.com/a/1luwh4sIRv...
authors.elsevier.com
Reposted by Brain Evolution News
Excited to share our new #biorxivpreprint:
“Sexual dimorphism in the complete connectome of the Drosophila male central nervous system” www.biorxiv.org/content/10.1...

We describe the #connectomics reconstruction and analysis of an entire adult #maleCNS #drosophila central nervous system. 1/10
Reposted by Brain Evolution News
Moreover, AGI might also require social interactions to become a reality, where cultural evolution (and extended mind) play a major role. It is not by chance that brain and culture evolved together, allowing complex minds to emerge @anilseth.bsky.social @mitibennett.bsky.social
Reposted by Brain Evolution News
An evolutionary perspective is much required to truly understand consciousness, how it originates and what clases we might find. We proposed a space of possible cognitions and did a comparative analysis
Reposted by Brain Evolution News
Can general artificial intelligence emerge by not following the evolution of complex brains? In this 2022 paper with @brigan.bsky.social we argued that embodiment, mind reading (mirror systems), mental time traveling... are necessary conditions
www.mdpi.com/1099-4300/24... @anilseth.bsky.social
Reposted by Brain Evolution News
Reposted by Brain Evolution News
We now have a unique opportunity to keep developing cartilaginous fish models. Throug their study we will be able to explore how these and other features evolved across vertebrates and uncover the molecular mechanisms driving brain evolution. Stay tuned for more discoveries and tool developments!
Reposted by Brain Evolution News
Our study moved the postulated origin of several developmental pallial features back to the jawed common ancestor. We hypothesize these features likely contributed to the increased complexity of their brains coincident with the emergence of predation.
a stuffed shark is standing in front of a fire
ALT: a stuffed shark is standing in front of a fire
media.tenor.com
Reposted by Brain Evolution News
Using the plasmid, we showed that the dorsal pallial area gives rise to a layered structure aligned with the positions of Reelin and CRs. Moreover, this structure corresponds with a complex anatomical region that brings together glutamatergic and GABAergic neurons, likely forming a complex circuitry
Reposted by Brain Evolution News
We developed a protocol to label shark neural tissue with a reporter plasmid- First time this is achieved in a Cartilaginous Fish! Impossible without (bluesky-less) Maite Boersig, Isabel Rollán, Dori Torres-Sabino and Rami Reshef. The coolest shark team ever!🦈💙
Reposted by Brain Evolution News
Till recently, bony fish have been the main fish reference group for comparative purpose, but contrary to cartilaginous fish, they are evolutionary speedsters, with brains that have taken unique paths.
schema showing that sharks and all other tetrapods develop their telencephalons by evagination, while only the bony fish lineage develop everted telencephalons
Reposted by Brain Evolution News
In our lab we study the evolutionary origin of neurons and nervous systems. For this we use #choanoflagellates & #ctenophores as model organisms. Enjoy this beautiful ctenophore Mnemiopsis leidyi filmed in our facility in Bergen: www.uib.no/en/michaelsa... #evolution #origin #neuron
Reposted by Brain Evolution News
Another key finding of our work is that nervous systems may have became centralized EARLIER than previously assumed 🤩.

We found that the ctenophore aboral organ is tightly associated with a condensed SYNCYTIAL nerve net. See below: comparison of regular vs. condensed nerve net.
Reposted by Brain Evolution News
The aboral organ of a 1-day-old ctenophore is composed of ca. 900 cells, encompassing 17 distinct cell types 🤩. Below are examples for each cell type.

#cilia #sensory #vesicles #diversity #neuron
Reposted by Brain Evolution News
13. Gabi et al. 2010, Brain Behav Evol, doi:10.1159/000319872