Jeff Day
@jeffday.bsky.social
i like weird deep sea shit, particularly cephalopods. also metal, parasitic fungi, horror, etc.
he/him, ace, adhd (maybe autistic?)
opinions are mine and not my employer’s
he/him, ace, adhd (maybe autistic?)
opinions are mine and not my employer’s
Reposted by Jeff Day
February 5, 2026 at 6:12 AM
Reposted by Jeff Day
February 5, 2026 at 10:37 AM
Reposted by Jeff Day
This squid looks like it got sliced open in the back. @schmidtocean.bsky.social dive 898 #livingbioreactors #MarineLife
February 5, 2026 at 9:49 AM
This squid looks like it got sliced open in the back. @schmidtocean.bsky.social dive 898 #livingbioreactors #MarineLife
Reposted by Jeff Day
Ommastrephes per squid squad. Inked SuBastian. @schmidtocean.bsky.social dive 898 #livingbioreactors #MarineLife
February 5, 2026 at 8:45 AM
Ommastrephes per squid squad. Inked SuBastian. @schmidtocean.bsky.social dive 898 #livingbioreactors #MarineLife
Reposted by Jeff Day
The #ArgentinianDeepSeeps team completed 1st comprehensive study of Argentina’s cold seeps. Their goal: to understand how the animal communities live and interact with localized physical, geological, and chemical conditions as well as with surrounding deep-sea ecosystems.
youtu.be/KvJewhMvrIQ?...
youtu.be/KvJewhMvrIQ?...
Life in Extremes — Cold Seeps of Argentina | 4K ROV Highlights
YouTube video by Schmidt Ocean
youtu.be
January 13, 2026 at 5:26 PM
The #ArgentinianDeepSeeps team completed 1st comprehensive study of Argentina’s cold seeps. Their goal: to understand how the animal communities live and interact with localized physical, geological, and chemical conditions as well as with surrounding deep-sea ecosystems.
youtu.be/KvJewhMvrIQ?...
youtu.be/KvJewhMvrIQ?...
Reposted by Jeff Day
Everything is really scary and horrible, and on the utter flipside, we made these really adorable valentines.
The dissonance of seeing horror, then posting "hey buy some cute valentines" is making me feel loopy.
But also nice things persist despite terror? Ugh idk.
Get 'em at SquidFacts.net
The dissonance of seeing horror, then posting "hey buy some cute valentines" is making me feel loopy.
But also nice things persist despite terror? Ugh idk.
Get 'em at SquidFacts.net
January 13, 2026 at 1:46 AM
Everything is really scary and horrible, and on the utter flipside, we made these really adorable valentines.
The dissonance of seeing horror, then posting "hey buy some cute valentines" is making me feel loopy.
But also nice things persist despite terror? Ugh idk.
Get 'em at SquidFacts.net
The dissonance of seeing horror, then posting "hey buy some cute valentines" is making me feel loopy.
But also nice things persist despite terror? Ugh idk.
Get 'em at SquidFacts.net
Reposted by Jeff Day
Reposted by Jeff Day
Disheartening to learn that after 18 years, founder Ken-ichi Ueda has left iNaturalist, citing irreconcilable differences in the direction of the company.
kueda.net/blog/2026/01...
He has a Patreon while he figures out his next move: www.patreon.com/cw/kueda
kueda.net/blog/2026/01...
He has a Patreon while he figures out his next move: www.patreon.com/cw/kueda
Why I Left iNaturalist
After almost 18 years, I left iNaturalist, the product and organization I helped create. I left because I don’t believe the current Leadership team is pointing the product in the right direction, and ...
kueda.net
January 7, 2026 at 7:37 PM
Disheartening to learn that after 18 years, founder Ken-ichi Ueda has left iNaturalist, citing irreconcilable differences in the direction of the company.
kueda.net/blog/2026/01...
He has a Patreon while he figures out his next move: www.patreon.com/cw/kueda
kueda.net/blog/2026/01...
He has a Patreon while he figures out his next move: www.patreon.com/cw/kueda
Reposted by Jeff Day
Creature Commish from way down deep.
January 5, 2026 at 5:41 PM
Creature Commish from way down deep.
Reposted by Jeff Day
Biologists must display their most marvelous plumage if they are to be accepted by a flock of fellow biologists.
We are now witness to this rare yet beautiful phenomenon at the Society of Integrative of Comparative Biology conference in Portland, OR #SICB2026
We are now witness to this rare yet beautiful phenomenon at the Society of Integrative of Comparative Biology conference in Portland, OR #SICB2026
January 6, 2026 at 12:49 AM
Biologists must display their most marvelous plumage if they are to be accepted by a flock of fellow biologists.
We are now witness to this rare yet beautiful phenomenon at the Society of Integrative of Comparative Biology conference in Portland, OR #SICB2026
We are now witness to this rare yet beautiful phenomenon at the Society of Integrative of Comparative Biology conference in Portland, OR #SICB2026
thanks to @mossworm.bsky.social i am unable to think of the mariana snailfish as something other than 'bibby'
The deepest confirmed fish observation occurred at ~8,300 m. I know the shape behind it is another fish’s tail, but my brain insists it looks like the foreground fish is wearing a party hat. #deepsea #marinelife
www.nhm.ac.uk/discover/new...
www.nhm.ac.uk/discover/new...
January 5, 2026 at 5:44 PM
thanks to @mossworm.bsky.social i am unable to think of the mariana snailfish as something other than 'bibby'
Reposted by Jeff Day
ICYMI: On Friday, we ran an exclusive interview with the owners of Bottom of the Hill, a beloved SF club that plans to shutter its doors later this year. I've always loved this venue, but it's storied history is so much more fascinating than I realized...
Beloved SF Club Bottom of the Hill to Close at the End of 2026
One of the city’s last independent music venues, Bottom of the Hill has survived waves of gentrification, COVID closures, and more throughout its 35 years. Now, owners say it’s last call — on their ow...
www.coyotemedia.org
January 5, 2026 at 4:49 PM
ICYMI: On Friday, we ran an exclusive interview with the owners of Bottom of the Hill, a beloved SF club that plans to shutter its doors later this year. I've always loved this venue, but it's storied history is so much more fascinating than I realized...
Reposted by Jeff Day
There have been over 100 unique media stories about the deep sea mining near the Mariana Trench since the Request for Information was announced by the Trump administration on November 10 -- including local, national, and international outlets.
Read our media list: docs.google.com/document/d/1...
Read our media list: docs.google.com/document/d/1...
CNMI Deep Sea Mining resources
Mariana Trench Deep Sea Mining Educational Resources THIS IS A PUBLIC DOCUMENT. PLEASE SHARE IT WITH YOUR FRIENDS AND FAMILY. Updated: January 5, 2025. New resources are highlighted. Contact: Ange...
docs.google.com
January 5, 2026 at 3:29 PM
There have been over 100 unique media stories about the deep sea mining near the Mariana Trench since the Request for Information was announced by the Trump administration on November 10 -- including local, national, and international outlets.
Read our media list: docs.google.com/document/d/1...
Read our media list: docs.google.com/document/d/1...
Reposted by Jeff Day
I'm convinced squid know they are fabulous. @schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
December 30, 2025 at 7:07 PM
I'm convinced squid know they are fabulous. @schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
Reposted by Jeff Day
A spotted ratfish! These are such neat weird little guys; I didn't realize they lived in our region (west coast Canada)
Drawn with fine line pen and alcohol markers
#fish #marine #pacificocean #ratfish #ghostshark #inkart #ohuhu
Drawn with fine line pen and alcohol markers
#fish #marine #pacificocean #ratfish #ghostshark #inkart #ohuhu
December 31, 2025 at 12:02 AM
A spotted ratfish! These are such neat weird little guys; I didn't realize they lived in our region (west coast Canada)
Drawn with fine line pen and alcohol markers
#fish #marine #pacificocean #ratfish #ghostshark #inkart #ohuhu
Drawn with fine line pen and alcohol markers
#fish #marine #pacificocean #ratfish #ghostshark #inkart #ohuhu
Reposted by Jeff Day
Woohoo, squid time! @jeffday.bsky.social
@schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
@schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
December 30, 2025 at 4:17 PM
Woohoo, squid time! @jeffday.bsky.social
@schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
@schmidtocean.bsky.social dive 889 #argentiniandeepseeps #MarineLife #CONICET
"hey i wonder what's been going on with the magnapinna wikipedia page since i got that list of sightings published"
"...oh"
en.wikipedia.org/w/index.php?...
(the subsequent edit reverts this vandalism, but just, ... what? lmao)
"...oh"
en.wikipedia.org/w/index.php?...
(the subsequent edit reverts this vandalism, but just, ... what? lmao)
December 30, 2025 at 8:32 PM
"hey i wonder what's been going on with the magnapinna wikipedia page since i got that list of sightings published"
"...oh"
en.wikipedia.org/w/index.php?...
(the subsequent edit reverts this vandalism, but just, ... what? lmao)
"...oh"
en.wikipedia.org/w/index.php?...
(the subsequent edit reverts this vandalism, but just, ... what? lmao)
from the fin proportions and secondary mantle fin the santa hat is nestled on we can deduce that this squid is asperoteuthis, in this essay i will -
December 24, 2025 at 6:39 PM
from the fin proportions and secondary mantle fin the santa hat is nestled on we can deduce that this squid is asperoteuthis, in this essay i will -
Reposted by Jeff Day
wasnt really paying attention to the ascent, looked over and nearly shat myself
always fantastic to see a taningia, even if it's only a brief flyby
@schmidtocean.bsky.social
dive 883 #argentiniandeepseeps #MarineLife #CONICET
always fantastic to see a taningia, even if it's only a brief flyby
@schmidtocean.bsky.social
dive 883 #argentiniandeepseeps #MarineLife #CONICET
December 21, 2025 at 9:47 AM
wasnt really paying attention to the ascent, looked over and nearly shat myself
always fantastic to see a taningia, even if it's only a brief flyby
@schmidtocean.bsky.social
dive 883 #argentiniandeepseeps #MarineLife #CONICET
always fantastic to see a taningia, even if it's only a brief flyby
@schmidtocean.bsky.social
dive 883 #argentiniandeepseeps #MarineLife #CONICET
Reposted by Jeff Day
Can't say that I've seen a Macrourid this huge before! She looks quite old. Impressive. @schmidtocean.bsky.social dive 883 #argentiniandeepseeps #MarineLife #CONICET
December 21, 2025 at 6:03 AM
Can't say that I've seen a Macrourid this huge before! She looks quite old. Impressive. @schmidtocean.bsky.social dive 883 #argentiniandeepseeps #MarineLife #CONICET
Reposted by Jeff Day
Around these parts amphipods in the family Pleustidae can be found readily by dock foulers and tide poolers who care to look. Some are as big as your thumb nail (like a mature female Thorlaksonius) while others like this Micropleustes require magnification to appreciate. #Crustmas
December 20, 2025 at 5:55 PM
Around these parts amphipods in the family Pleustidae can be found readily by dock foulers and tide poolers who care to look. Some are as big as your thumb nail (like a mature female Thorlaksonius) while others like this Micropleustes require magnification to appreciate. #Crustmas
Reposted by Jeff Day
MARI LWYD CHARITY AUCTION PART 2
A collection of postcards from @drawingdownlore.bsky.social and @anthecorollaria.bsky.social arrived for the auction @blacksmoke1033.bsky.social donated 5 enamel badges, raising money for each charity
Starts at 7pm tonight!
www.ebay.co.uk/usr/skullsns...
A collection of postcards from @drawingdownlore.bsky.social and @anthecorollaria.bsky.social arrived for the auction @blacksmoke1033.bsky.social donated 5 enamel badges, raising money for each charity
Starts at 7pm tonight!
www.ebay.co.uk/usr/skullsns...
December 14, 2025 at 2:39 PM
MARI LWYD CHARITY AUCTION PART 2
A collection of postcards from @drawingdownlore.bsky.social and @anthecorollaria.bsky.social arrived for the auction @blacksmoke1033.bsky.social donated 5 enamel badges, raising money for each charity
Starts at 7pm tonight!
www.ebay.co.uk/usr/skullsns...
A collection of postcards from @drawingdownlore.bsky.social and @anthecorollaria.bsky.social arrived for the auction @blacksmoke1033.bsky.social donated 5 enamel badges, raising money for each charity
Starts at 7pm tonight!
www.ebay.co.uk/usr/skullsns...
i hate this shit so much
i have a hard enough time convincing people that actual deep sea footage is of real animals - this crap makes that task 10x as difficult
i have a hard enough time convincing people that actual deep sea footage is of real animals - this crap makes that task 10x as difficult
AI slop has made it to the deep sea.
That’s not a blobfish: Deep Sea Social Media is Flooded by AI Slop
www.southernfriedscience.com/thats-not-a-...
That’s not a blobfish: Deep Sea Social Media is Flooded by AI Slop
www.southernfriedscience.com/thats-not-a-...
That’s not a blobfish: Deep Sea Social Media is Flooded by AI Slop
Well, it finally happened. Over the last two week, my usually well-curated feeds of videos from the deep sea have been overrun with AI slop masquerading as authentic images of strange and delightfu…
www.southernfriedscience.com
December 20, 2025 at 2:53 AM
i hate this shit so much
i have a hard enough time convincing people that actual deep sea footage is of real animals - this crap makes that task 10x as difficult
i have a hard enough time convincing people that actual deep sea footage is of real animals - this crap makes that task 10x as difficult