James Witts
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jdwitts.bsky.social
James Witts
@jdwitts.bsky.social
NERC Postdoctoral Researcher in Palaeoecology @nhm-london.bsky.social Fossil-wrangler (mostly in the Cretaceous, dabbling in the Jurassic, Paleogene, and more recent), big fan of (southern) high latitudes. Ferroequinologist. Views are my own.
Reposted by James Witts
Can confirm I’ve had the experience of saying I live in London and getting a concerned/worried response, almost certainly due to all the online nonsense out there. Don’t believe the lies!
London’s murder rate is at its lowest since comparable records began. That makes the city safer than Paris, Berlin and New York. Discount the inflammatory content on social media
London is far safer than violent viral videos will have you believe
Contrary to social-media lore, it is one of the safest cities in the world
econ.st
January 29, 2026 at 8:08 AM
Reposted by James Witts
So WeTransfer, which has been my go-to large file sharing service for over a decade, has decided they now own what you upload & can use it to train AI. Anyone know of any good alternatives?
January 27, 2026 at 8:50 PM
Reposted by James Witts
I'd rather be talking about the mysteries of the universe than thinking about the stupidity of this world.
January 26, 2026 at 6:20 PM
Quite apart from everything else going on in the 🇺🇸 this is what the government are now proposing for *any* international visitors. 🙄

privacyinternational.org/news-analysi...
January 27, 2026 at 9:54 AM
Reposted by James Witts
The UK gov has finally released the Global biodiversity loss, ecosystem collapse and national security report. We face catastrophe. Why aren't politicians acting? I think some are - but in ways perhaps just as frightening.
My latest for Technosphere Earth.
www.technosphere.earth/no-war-on-a-...
No war on a dead planet
If defence and intelligence agencies understand the risks from climate and biodiversity collapse, why can’t politicians?
www.technosphere.earth
January 23, 2026 at 2:46 PM
Reposted by James Witts
“the race to publish results, in some cases by groups with limited analytical expertise, has led to rushed results & routine scientific checks being overlooked”

The demand for novelty & the rush to be the first is damaging to scientific research & its credibility
www.theguardian.com/environment/...
‘A bombshell’: doubt cast on discovery of microplastics throughout human body
Exclusive: Some scientists say many detections are most likely error, with one high-profile study called a ‘joke’
www.theguardian.com
January 14, 2026 at 8:37 AM
Reposted by James Witts
🧵A political/media guide to the "truth" about net-zero

1) Add up costs to install & run a net-zero energy system
2) Pretend fossil-fuelled alternatives wld be free
3) Do say "eco zealots are bankrupting us"
4) Don't say "free cars if we scrap net-zero" cos it sounds ridiculous
5) That's it!

1/10
January 12, 2026 at 4:18 PM
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Would not mess with this chappy from Sheppey @sedgwickmuseum.bsky.social
January 12, 2026 at 11:45 AM
Reposted by James Witts
This thread gets at something I’ve been worrying over for a while now: particularly in terms of how we teach it, geology remains very much focussed on centring rocks as resources, and an unwillingness to grapple with this lies at the heart of our recruitment problem.
I appreciate this from @us.theconversation.com by Jonathan Paul.

However, I think it’s making a mistake I commonly hear geologists make with regards to current events.

I have a hunch that this mistake is one of the reasons geology programs are struggling 🧵🛠️🪨🧪

theconversation.com/greenland-is...
Greenland is rich in natural resources – a geologist explains why
Greenland’s rare earth element deposits may be among the world’s largest by volume.
theconversation.com
January 11, 2026 at 1:54 PM
Reposted by James Witts
Our latest: Independent origins of spicules reconcile paleontological and molecular evidence of sponge evolutionary history, led by @meleonora-rossi.bsky.social with help from friends @bristolpalaeo.bsky.social including @anariesgo.bsky.social @evopalaeo.bsky.social Davide Pisani and many others
Independent origins of spicules reconcile paleontological and molecular evidence of sponge evolutionary history
Sponges have a cryptic Ediacaran history because ancestral sponges were soft-bodied and had low fossilization potential.
www.science.org
January 8, 2026 at 7:39 AM
Reposted by James Witts
This is one of the wildest deep-sea mining stories to me.

Paleodictyon is a 500-million-year-old trace fossil from an unknown organism. In the last 50 years, we've found their honeycomb traces on the seafloor. There is a living organism that has been doing its thing for half a billion years.
Recovery of Paleodictyon patterns after simulated mining activity on Pacific nodule fields - Marine Biodiversity
Since the late 1980s, various experiments have been conducted in polymetallic nodule fields of the Pacific Ocean to assess the potential environmental impacts of future mining, specifically in two are...
link.springer.com
January 5, 2026 at 5:21 PM
First (freezing!) steam fix of 2026 courtesy of the Severn Valley Railway. 🥶❄️
January 4, 2026 at 2:36 PM
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Have you tried giving up Netflix and your avocado on toast?
January 4, 2026 at 10:45 AM
Reposted by James Witts
Going to try to be resilient in 2026, like the ammonites in Denmark that survived the dinosaur-killing asteroid and limped on for another ~100,000 years www.nature.com/articles/s41...
Ammonite survival across the Cretaceous–Paleogene boundary confirmed by new data from Denmark - Scientific Reports
We provide a reassessment of the hypothesis of ammonite survival across the Cretaceous–Paleogene (Maastrichtian–Danian) boundary, based on new data from the lower Danian Cerithium Limestone Member at ...
www.nature.com
January 1, 2026 at 5:00 PM
Reposted by James Witts
Thinking about the Ghosts of Extinctions Past, Extinctions Present, and Extinctions Yet to Come.

The Ghosts of Extinctions Past:
December 30, 2025 at 5:42 PM
Reposted by James Witts
I just feel like every single article talking about shrinkflation and chocolate should be leading with 'this is the direct result of the climate crisis'

(this article actually does a good job explaining this! I think more articles should be more explicit!)
www.theguardian.com/lifeandstyle...
A Chocolate Orange has doubled in price – and got smaller. Why?
From Quality Street to Toblerone to the Terry’s classic, festive treats are becoming more of a luxury – and it’s not just down to the price of cocoa
www.theguardian.com
December 18, 2025 at 9:42 AM
Reposted by James Witts
Seven feel-good science stories to round up 2025. All too often we forget to celebrate the positives
🧪
#AcademicSky

www.nature.com/articles/d41...
Seven feel-good science stories to restore your faith in 2025
Immense progress in gene-editing, drug discovery and conservation are just some of the reasons to be cheerful about 2025.
www.nature.com
December 18, 2025 at 8:15 AM
Reposted by James Witts
#MolluscMonday is all about rudists! These unusual bivalve molluscs were very common in the Late #Cretaceous, especially in tropical settings around the Tethys Ocean. Individual or conjoined specimens occasionally appear in the UK Chalk but are often poorly dated.
December 15, 2025 at 10:21 AM
Reposted by James Witts
New paper alert! 🚨 🐌

We studied historic Antarctic fossils from the Zinsmeister Collection to assess whether the K-Pg extinction, as recorded on Seymour Island, was sudden or gradual. We found that benthic life thrived in the 4 million years before the K-Pg.

doi.org/10.1016/j.pa...
December 13, 2025 at 10:51 AM
Reposted by James Witts
Fascinated to learn that we are still discovering new species at the highest rate ever. Mapping Earth's biodiversity is far from over, and while we learn more and more about it, let's protect what we do know as well as we can!
www.science.org/doi/10.1126/...
The past and future of known biodiversity: Rates, patterns, and projections of new species over time
The number of known species on Earth is increasing rapidly, suggesting unexpectedly large numbers of many groups.
www.science.org
December 8, 2025 at 7:00 AM
It's the most wonderful time of the year! Crap Winter Wonderland season.. 💀🎄
www.theguardian.com/lifeandstyle...
December 5, 2025 at 8:39 AM
Cosupervising x2 🇬🇧 PhD projects advertising now:

'The effects of climate cooling on evolution of Antarctic Eocene benthic communities' (BAS/Bristol) shorturl.at/MiWqJ

'Testing novel archives of seawater chemistry in biogenic carbonate' (Leeds): share.google/dbojTRZme92R...

Deadlines early Jan '26
December 1, 2025 at 9:55 AM
Reposted by James Witts
Have you ever heard of an allonautilus? The fuzzy sea peach at the top of my oil painting is the extremely rare allonautlius. Its only been documented in the wild a couple of times.

*more in comments*

#nautilus #allonautilus #marinelife #cephalopods #wildlifeart #oilpainting 🐡 🦑 #deepseamining
November 23, 2025 at 2:51 PM
Reposted by James Witts
My favorite ever letter of recommendation is one Ficino wrote in the late 1500s, recommending a pupil for a secretary job with King Matthias Corvinus of Hungary, in which he says the young man is “the reincarnation of Saint Thomas Aquinas.”
It’s letter-of-recommendation season again, when universities ask me to rate a 21 year old student’s ability to “see the big picture of life” while I eat leftover pasta in a Tupperware…
a man with a mustache says but why in yellow letters
ALT: a man with a mustache says but why in yellow letters
media.tenor.com
November 19, 2025 at 7:04 PM