Dr. Sven N. Nielsen
@snnielsen.bsky.social
geologist, paleontologist, malacologist Professor @ Universidad Austral de Chile
For #molluscmonday enjoy this video of a Magnapinna (bigfin) squid. That "Elbow" Joint? A sharp, right-angle bend forms where their thick upper arms transition into ultra-thin dangling filaments. We think this bend keeps their long threads from tangling www.youtube.com/watch?v=Z72S...
A Ghostly Find: Bigfin Squid
YouTube video by NOAA Ocean Exploration
youtube.com
Daily mollusk. Chrysomallon, the scaly-foot snail - the most metal snail of all.
C. Chen @ Jamsteeeec@squamiferum.bsky.social · 4d ago[New Paper] Reveals the protoconch (larval shell) of the Scaly-foot Snail! Usually rapidly corroded by acidic vent fluid, we found a tiny 3 mm specimen still retaining it. Large protoconch = more yolk may have helped it spread across ridges. @malacsoc.bsky.social J Moll Stud: doi.org/10.1093/moll...
Well, great, one more way in which climate change is messing with us - our blood chemistry. Blood bicarbonate levels show an increasing trend, one that parallels rising atmospheric CO2 concentrations (w/ potential health effects).🧪 Link: https://link.springer.com/article/10.1007/s11869-026-01918-5
"New records of deepwater gastropods (Mollusca: Gastropoda) from fisheries bycatch in northern Chile" has been published in #JournalofConchology #jconch @conchsoc #gastropoda #deepsea #mollusca #conchology #malacology doi.org/10.61733/jco...
Sub-surface ocean temperatures in the Pacific have now reached 9.96°C above average, significantly warmer than the previous record event in 1997. This El Niño continues to set new records. Nobody alive today has witnessed an event of this magnitude.
Every Geologist trying to finish field notes on the way to the next site . 😂
Military Jeeps on a Bumpy Ride
ALT: Military Jeeps on a Bumpy Ride
static.klipy.com
📬 The PAGES August newsletter is out! This month, we’re looking ahead to some exciting milestones across the PAGES community - including the first news about our next Open Science Meeting in Santiago, Chile, in 2029! 🇨🇱🌎 Read more 👉 pastglobalchanges.org/news/139047 #Paleoscience
Survey time - we want to hear from YOU! Your answers will help us better understand how the community uses and accesses @paleodb.bsky.social and will help shape future work on the database. Browsed Navigator once? Entered 1,342 taxa? Either way, we want your feedback! forms.gle/GFZukC1koFAb...
Paleobiology Database (PBDB) User Community Survey
Thank you for taking a few minutes to share your experiences and insights with the Paleobiology Database team! Your answers will help us better understand how the community uses and accesses the PBDB ...
forms.gle
The beauty of evolution revealed through homology, traits inherited "...from a common ancestor after having been subjected to adaptive modifications for different purposes as the result of natural selection." A human hand, a whale's pectoral fin.
Daily mollusk - very cool spiny ammonite 🧪
Robert Boessenecker, Dr. of Whaleontology ™️@coastalpaleo.bsky.social · 2w ago#molluskmonday A spiny ammonite, Neocrioceras, from the upper Cretaceous Chico Formation of Tehama County, California. Northern California has a surprisingly good fossil record of surprisingly well-preserved ammonites! On display at the Sierra College NHM.
Delighted to see this intersection of my interests: a trace-making dung beetle & hatred of AI art.
Petra Korlević@petrathepostdoc.bsky.social · last mo.
The University of Texas’s fish and herpetology building is mold-condemned and staff haven’t been able to work in the building for two years, and the UT herbarium is getting kicked out of their space in 2 years with no solid plan. This is absolutely true; the situation for American museums is dire.
John Garrison Marks@johngmarks.com · 2w agoOn my blog, I wrote about how America's museums are falling apart. The US has 20k+ museums, and most have historic buildings with leaky roofs, failing HVAC units, and flooding basements. What they don't have is money for repairs. Please read/share! 🧵 johngmarks.beehiiv.com/p/america-s-...
Daily mollusk - encrusters are important ecosystem engeneers
Chris Mah@echinoblog.bsky.social · 2w agoColleague John Pfeiffer talks about the importance of oyster specimens and their unusual attachments to understanding the health of the Chesapeake! #molluscmonday www.smithsonianmag.com/blogs/nation...
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Colin Carlson@colincarlson.bsky.social · 2w agoI wrote about a reason not to use generative AI in your writing that I haven't seen anyone talking about. Once I realized this, banning GenAI in our lab's writing became a no-brainer. Feel free to share, I think this is probably useful especially for trainees: www.carlsonlab.bio/thoughts/the...
This is a triggering image of a museum display in the natural history museum in DC about life before smartphones. Me and a fellow 40+ person were laughing at how we are now LITERAL MUSEUM PIECES. MY teen was like did you have a clear phone? An address book? A book of maps. Yes, yes I did. 🫠🫠🫠
Daily mollusk. Look at the next pic below this one for corrected indications
Jeff Clements 🦪@biolumijeffence.bsky.social · 2w agoThis pic was shared in a public clamming group I'm a part of, meant to educate group members on the anatomy of a clam shell Looks great at first glance But look closely: it's nothing more than AI-generated slop & is grossly incorrect The overall look & wonky "m" in umbo are dead giveaways
Fundamental study revealing, based on the bone histology, the high metabolic levels across Archosaur phylogenetic tree 👇 doi.org/10.1017/pab.... 🧪⚒️ #Geology #Paleobio
Daily mollusk. Neat bit of history 🧪
Richard Fallon@richardfallon.bsky.social · 2w agoLithographic printing stone for Australian Fossils, Plate 4, from vol. 10 of the "United States Exploring Expedition, During the Years 1838, 1839, 1840, 1841, 1842", prepared by Sarony & Major from illustrations by J. D. Dana. (Smithsonian; ID: 1999.0145.458; n2t.net/ark:/65665/n...). #FossilFriday
“It’s time to make oil giants pay up to repair the climate breakdown they’re driving. Think how many fire and flood defences we could build, or how many solar panels we could install, if big oil paid their fair share in taxes.” www.theguardian.com/business/ng-...
Revealed: major oil firms make $93bn profits amid war and climate crisis
Iran conflict windfall over three months reignites calls for companies ‘cashing in on human misery’ to pay for environmental damage
theguardian.com
I'm not sure folks have realized just how crazy the second half of 2026 and 2027 will be for global temperatures – on the back of a record-smashing El Niño event. Here is my latest estimate of where both years will end up compared to global temperatures since 1850.
It is much simpler: We know what we emitted since we know how much fossil fuel has been burned. And that’s twice as much as has accumulated in the atmosphere. So nature hasn’t been a source but a sink: oceans and forests took up half. And that’s also observed fact. www.climate.gov/news-feature...
How do we know the build-up of carbon dioxide in the atmosphere is caused by humans?
Fossil fuels are the only source of carbon dioxide large enough to raise atmospheric carbon dioxide amounts so high so quickly.
climate.gov
