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Daniel Brady Mills

@danbmills.bsky.social

Geo- & astrobiologist at the University of Düsseldorf // co-evolution of #eukaryotes and the #Proterozoic biosphere // unrepentant Gaian and Margulis devotee www.danielbradymills.com

159 Followers  |  168 Following  |  42 Posts  |  Joined: 06.11.2024
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Posts by Daniel Brady Mills (@danbmills.bsky.social)

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Priority effects inhibit the repeated evolution of phototrophy - npj Complexity npj Complexity - Priority effects inhibit the repeated evolution of phototrophy

New paper out! Here's a puzzle: phototrophy, the ability to use light for energy, is one of life's great innovations. It evolved early and transformed the biosphere. But it evolved 2x. Why not just once, why not more? Our work suggests the answer is priority effects.

www.nature.com/articles/s44...

03.02.2026 21:36 — 👍 137    🔁 55    💬 3    📌 4

Even better!

21.01.2026 14:28 — 👍 1    🔁 0    💬 0    📌 0

Please do this!

21.01.2026 11:21 — 👍 1    🔁 0    💬 1    📌 0

Congrats Jason!

19.01.2026 19:16 — 👍 1    🔁 0    💬 0    📌 0
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Bivalves usurped brachiopods as the dominant benthic filter-feeders—the reasons why have been debated. new #Geology paper by Kemi Ashing-Giwa and colleagues support the hypothesis that sulfide played a significant role in the extinction’s selectivity.

Read article: geosociety.co/Ashing-Giwa_et_al

17.01.2026 18:00 — 👍 10    🔁 2    💬 0    📌 1

Not soon enough!

10.12.2025 14:26 — 👍 1    🔁 0    💬 0    📌 0

I love it too! In the classic sense, in that you have previously free-living organisms (human beings) becoming units in a higher-level organism (the hive mind). Joined humans are to mitochondria what the hive mind is to the eukaryotic cell.

10.12.2025 13:27 — 👍 1    🔁 0    💬 0    📌 0

I was wondering what you thought of this show! Also whether the joining could qualify as a major transition in evolution or individuality. Not sure if that works on a planetary level, or if this hive mind reproduces at all (are they now transmitting a signal like the one they received?).

10.12.2025 09:56 — 👍 0    🔁 0    💬 0    📌 1
Close up photo of a pale green lichen with brown apothecia. The lichen looks like a musical instrument from a Dr. Seuss book.

Close up photo of a pale green lichen with brown apothecia. The lichen looks like a musical instrument from a Dr. Seuss book.

Cladonia lichen. #Newfoundland, Canada.
#fungifriends #fungi #hiking #lichen

30.11.2025 16:53 — 👍 796    🔁 108    💬 21    📌 8

No worries at all, very happy to see it out!

01.12.2025 10:24 — 👍 1    🔁 0    💬 0    📌 0

Grateful to Philip Ball for this thoughtful piece on our recent hard-steps paper! @jmacalad.bsky.social @adamfrank4.bsky.social @astrowright.bsky.social

30.11.2025 00:10 — 👍 7    🔁 2    💬 1    📌 0

So happy to announce our new preprint, “A geothermal amoeba sets a new upper temperature limit for eukaryotes.” We cultured a novel amoeba from Lassen Volcanic NP (CA, USA) that divides at 63°C (145°F) 🔥 - a new record for euk growth!
#protistsonsky 🧵

25.11.2025 20:41 — 👍 494    🔁 165    💬 16    📌 32
A portrait of a smiling Lynn Margulis.

A portrait of a smiling Lynn Margulis.

14 years since we lost Lynn Margulis (November 22, 2011). Still can’t believe she’s gone.
A giant of biology, through her co-creation of the Gaia Hypothesis, & her endosymbiotic theory, she changed the way we see life, evolution, our planet, ourselves. I feel so privileged to have known her.
🧪

22.11.2025 19:36 — 👍 77    🔁 18    💬 1    📌 0

Please apply if you are interested in marine biogeochemistry and microbial dark oxygen production. Deadline: November 17th.

10.11.2025 00:06 — 👍 5    🔁 5    💬 0    📌 0

And then some tech bros think to themselves, "What if *I* could be that asshole??"

07.11.2025 14:33 — 👍 1    🔁 0    💬 0    📌 0

Preordered! Can't wait!

03.11.2025 13:45 — 👍 1    🔁 0    💬 0    📌 0

N2 fixation is a great candidate hard step! Not sure if anyone has proposed it as one before.

10.10.2025 13:50 — 👍 2    🔁 0    💬 0    📌 0

Nooo! Wonder how long it's been there...

10.10.2025 13:45 — 👍 0    🔁 0    💬 0    📌 0
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‘Earth system engineers’ and the cumulative impact of organisms in deep time Understanding the role of humans as ‘ecosystem engineers’ requires a deep-time perspective rooted in evolutionary history and the fossil record. Howev…

New in Trends in Ecology & Evolution: 'Earth system engineers' and the cumulative impact of organisms in deep time 🔓 #ecoevo #openaccess

www.sciencedirect.com/science/arti...

A thread 🧵:

24.09.2025 08:55 — 👍 28    🔁 13    💬 3    📌 0

Was just thinking about this after watching the original The Thing from Another World for the first time. I was surprised that the alien wasn't a shape-shifter like in the remake or novella, but an "intellectual carrot" as one of the characters put it.

23.09.2025 08:47 — 👍 1    🔁 0    💬 0    📌 0

Mesmerizing!

18.09.2025 11:26 — 👍 0    🔁 0    💬 0    📌 0
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Symbiotic Earth - Hummingbird Films The film, Symbiotic Earth, is about Lynn Margulis, a scientific rebel who challenged entrenched theories of evolution to present a new narrative.

Show them Symbiotic Earth! hummingbirdfilms.com/symbioticear...

16.09.2025 14:22 — 👍 0    🔁 0    💬 0    📌 0
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The Greatest Extinction Event in 66 Million Years? Contextualising Anthropogenic Extinctions Species and ecosystems are changing rapidly in response to human actions, but how does this compare with the deeper past? We review and compare the current extinction event to those over the last 66 ....

Human-driven extinction event not yet the "sixth mass extinction", but is very likely the largest extinction event of the last 66 million yrs. 🌏 🧪

Read about it in our new paper led by @jackhhatfield.bsky.social
and Katie Davis @anthropocenebio.bsky.social

doi.org/10.1111/gcb....

04.09.2025 11:14 — 👍 130    🔁 51    💬 8    📌 3
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Andrea Halling, a grad student at University of Colorado Boulder, recently led experiments with living algae to test how the physical conditions of ancient seawater might have impacted ancient single-celled organisms. quantamagazine.org/the-physics-...

02.09.2025 04:46 — 👍 39    🔁 2    💬 0    📌 0
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Very happy to share this new paper we've recently published. Do biospheres use information in the same way organisms do? Can we think of biospheres as agents?

"Exo-Daisy World: Revisiting Gaia Theory through an Informational Architecture Perspective"

iopscience.iop.org/article/10.3...

28.08.2025 16:40 — 👍 8    🔁 1    💬 0    📌 1

Sounds great -- excited to check it out!

21.08.2025 14:48 — 👍 1    🔁 0    💬 1    📌 0
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In one week my book about carbon comes out, and here's some nice things some nice people have said about it. If you feel moved to do so, the link below provides a means of purchase. Thank you, that is all. www.harpercollins.com/products/the...

19.08.2025 14:43 — 👍 109    🔁 34    💬 7    📌 10

I've been looking forward to this! Saw Nir present this at Goldschmidt back in 2023.

13.08.2025 21:40 — 👍 2    🔁 0    💬 1    📌 0
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The geologic history of marine dissolved organic carbon from iron oxides - Nature A direct proxy for past dissolved organic carbon signatures using co-precipitated organic carbon in iron ooids enables reconstruction of marine dissolved organic carbon signals dating back to the Pala...

🚨 Paper alert! 🚨 After >1 year in review and six (6!) reviewers, I'm thrilled that this paper is finally out! Here, we provide the first data-based record of marine dissolved organic carbon in the geologic past.
www.nature.com/articles/s41...

13.08.2025 16:11 — 👍 41    🔁 17    💬 4    📌 4

Fantastic!!

13.08.2025 12:29 — 👍 1    🔁 0    💬 0    📌 0