Marshal Hedin
@mhedin.bsky.social
devoted to the study & understanding of biodiversity, and public sharing of biodiversity knowledge and beauty. a "curator" of biological collections, and of the planet. Dad, Univ Prof
Reposted by Marshal Hedin
See you all at Darwin Day next week on our beautiful @sandiegostate.bsky.social campus, featuring Dr. Jim McGuire's keynote lecture on "Darwin, Wallace, and my Own Studies on the Magical Island of Sulawesi, Indonesia"! Deets in the flyer - but please DM me if you have any questions.
February 5, 2026 at 11:03 PM
See you all at Darwin Day next week on our beautiful @sandiegostate.bsky.social campus, featuring Dr. Jim McGuire's keynote lecture on "Darwin, Wallace, and my Own Studies on the Magical Island of Sulawesi, Indonesia"! Deets in the flyer - but please DM me if you have any questions.
Reposted by Marshal Hedin
Skeleton shrimp: superior snackers
This amphipod in the family Caprellidae, has feather-like setae line several of their 18 appendages for collecting food — amphipod translates to “feet on all sides” in Greek.
#argentiniandeepseeps ~1200 meters
This amphipod in the family Caprellidae, has feather-like setae line several of their 18 appendages for collecting food — amphipod translates to “feet on all sides” in Greek.
#argentiniandeepseeps ~1200 meters
February 2, 2026 at 6:01 PM
Skeleton shrimp: superior snackers
This amphipod in the family Caprellidae, has feather-like setae line several of their 18 appendages for collecting food — amphipod translates to “feet on all sides” in Greek.
#argentiniandeepseeps ~1200 meters
This amphipod in the family Caprellidae, has feather-like setae line several of their 18 appendages for collecting food — amphipod translates to “feet on all sides” in Greek.
#argentiniandeepseeps ~1200 meters
Reposted by Marshal Hedin
Interested in insect macrophotography? If you are in the midwest, think about attending this workshop put on by @ageofarthropods.bsky.social and myself, 2-3 May 2026 cvent.me/qK5bOo
February 2, 2026 at 8:32 PM
Interested in insect macrophotography? If you are in the midwest, think about attending this workshop put on by @ageofarthropods.bsky.social and myself, 2-3 May 2026 cvent.me/qK5bOo
Siskiyou County is the best !
Bear Mountain Lookout 2, Siskiyou County, CA
🗺41.3015, -121.7189 🧭236° ⛰5787 ft
https://ops.alertcalifornia.org/cam-console/17912
🗺41.3015, -121.7189 🧭236° ⛰5787 ft
https://ops.alertcalifornia.org/cam-console/17912
February 2, 2026 at 7:35 PM
Siskiyou County is the best !
Reposted by Marshal Hedin
Given that at least 50% of all biodiversity is unknown to science , the answer is obviously yes!
TLDR; it is too early to stop doing taxonomic & natural history work and exclusively do meta-analysis; our existing datasets are highly structured & biology is weird. we shouldn't assume we already know enough to extrapolate a species' needs for conservation- we still need taxonomy & autecology
February 1, 2026 at 5:12 PM
Given that at least 50% of all biodiversity is unknown to science , the answer is obviously yes!
Reposted by Marshal Hedin
From a group of 14 bighorn rams who were roaming around Borrego Palm Canon on 2026-01-18 (Photos: Sicco Rood). (3)
February 1, 2026 at 12:32 AM
From a group of 14 bighorn rams who were roaming around Borrego Palm Canon on 2026-01-18 (Photos: Sicco Rood). (3)
Reposted by Marshal Hedin
Chromosome-scale #genomes from newly sequenced spiders & the whip scorpion, the genetic basis of spinneret emergence in spiders & the complex history & functional importance of arachnid genome #evolution www.science.org/doi/10.1126/... #biodiversity #genomics
An ancient genome duplication event drives the development and evolution of spinnerets in spiders
A genome duplication event during the Silurian played a crucial role in the evolutionary emergence of spinnerets in spiders.
www.science.org
January 30, 2026 at 11:10 AM
Chromosome-scale #genomes from newly sequenced spiders & the whip scorpion, the genetic basis of spinneret emergence in spiders & the complex history & functional importance of arachnid genome #evolution www.science.org/doi/10.1126/... #biodiversity #genomics
Reposted by Marshal Hedin
Versatile fairy shrimp have gone back into dried mud at Clark Dry Lake. They are best known for producing incredibly hardy, drought-resistant eggs (cysts) that can survive for decades in dry mud, extreme temperatures (-310F to 210F), and even outer space (Photos: Sicco Rood).
January 29, 2026 at 11:14 PM
Versatile fairy shrimp have gone back into dried mud at Clark Dry Lake. They are best known for producing incredibly hardy, drought-resistant eggs (cysts) that can survive for decades in dry mud, extreme temperatures (-310F to 210F), and even outer space (Photos: Sicco Rood).
Reposted by Marshal Hedin
🕸️ The #silk of this gorgeous little cribellator is not your standard silk - read @evoimec.bsky.social new study here: doi.org/10.1073/pnas... 🕸️
January 27, 2026 at 6:10 PM
🕸️ The #silk of this gorgeous little cribellator is not your standard silk - read @evoimec.bsky.social new study here: doi.org/10.1073/pnas... 🕸️
College students over the past 5 years have been traumatized,
and yet, they proceed and continue to inspire me
and yet, they proceed and continue to inspire me
Feels like society’s really broken down in the US in a way that’s deeply traumatic.
But also there are college students knocking on doors asking for shovels (they’re not well-prepared) and helping trapped motorists by shoveling and pushing out cars. Up to 24 of them now, wandering streets together
But also there are college students knocking on doors asking for shovels (they’re not well-prepared) and helping trapped motorists by shoveling and pushing out cars. Up to 24 of them now, wandering streets together
January 26, 2026 at 12:41 AM
College students over the past 5 years have been traumatized,
and yet, they proceed and continue to inspire me
and yet, they proceed and continue to inspire me
Reposted by Marshal Hedin
ICE has kidnapped another Indigenous person in Minneapolis. This is the fifth member of the Očhéthi Šakówinnto be taken this month.
Statement from Standing Rock:
Statement from Standing Rock:
January 25, 2026 at 9:03 PM
ICE has kidnapped another Indigenous person in Minneapolis. This is the fifth member of the Očhéthi Šakówinnto be taken this month.
Statement from Standing Rock:
Statement from Standing Rock:
Reposted by Marshal Hedin
There's something happening here
What it is ain't exactly clear
There's a man with a gun over there
A-telling me I got to beware
I think it's time we stop
Children, what's that sound?
Everybody look what's going down
What it is ain't exactly clear
There's a man with a gun over there
A-telling me I got to beware
I think it's time we stop
Children, what's that sound?
Everybody look what's going down
January 24, 2026 at 5:31 PM
There's something happening here
What it is ain't exactly clear
There's a man with a gun over there
A-telling me I got to beware
I think it's time we stop
Children, what's that sound?
Everybody look what's going down
What it is ain't exactly clear
There's a man with a gun over there
A-telling me I got to beware
I think it's time we stop
Children, what's that sound?
Everybody look what's going down
Reposted by Marshal Hedin
The hazards of failing first-year biology: you invade the wrong pole.
🇦🇶 🐧 🇬🇱 🐻❄️
🇦🇶 🐧 🇬🇱 🐻❄️
January 24, 2026 at 4:34 AM
The hazards of failing first-year biology: you invade the wrong pole.
🇦🇶 🐧 🇬🇱 🐻❄️
🇦🇶 🐧 🇬🇱 🐻❄️
Reposted by Marshal Hedin
Tom and John Emmel and Sterling Mattoon officially began their work on “The Butterflies of California” book in 1974.
Now, more than 50 years after they began, the book draft has officially been published online and is freely available to the public:
www.floridamuseum.ufl.edu/science/the-...
🦋📕
Now, more than 50 years after they began, the book draft has officially been published online and is freely available to the public:
www.floridamuseum.ufl.edu/science/the-...
🦋📕
January 20, 2026 at 9:48 PM
Tom and John Emmel and Sterling Mattoon officially began their work on “The Butterflies of California” book in 1974.
Now, more than 50 years after they began, the book draft has officially been published online and is freely available to the public:
www.floridamuseum.ufl.edu/science/the-...
🦋📕
Now, more than 50 years after they began, the book draft has officially been published online and is freely available to the public:
www.floridamuseum.ufl.edu/science/the-...
🦋📕
Reposted by Marshal Hedin
🧵 1/4 Want to help immigrants in Minnesota? Here are four ways that come highly recommended (three orgs, and one Amazon wishlist by a group of medics)
monarcamn.org/about
monarcamn.org/about
About — Monarca
monarcamn.org
January 20, 2026 at 5:53 PM
🧵 1/4 Want to help immigrants in Minnesota? Here are four ways that come highly recommended (three orgs, and one Amazon wishlist by a group of medics)
monarcamn.org/about
monarcamn.org/about
Reposted by Marshal Hedin
This is so grim. Science isn’t just something nerds do, but the foundation of the modern world. What the Trump regime has done to US science will harm Americans for generations.
‘Shattered’: US scientists speak out about how Trump policies disrupted their careers
Researchers lay bare the human toll of lay-offs, funding cuts and attacks on science one year after the president’s return to the White House.
www.nature.com
January 20, 2026 at 11:23 AM
This is so grim. Science isn’t just something nerds do, but the foundation of the modern world. What the Trump regime has done to US science will harm Americans for generations.
Reposted by Marshal Hedin
Greenlandic politician Tillie Martinussen on the sovereignty of Greenlanders, the greed in the US, and how they view their land. Also comments on how the US treated Natives, as a very good reason to not want to be a part of the US.
youtu.be/xs53IESxz80?...
youtu.be/xs53IESxz80?...
‘Big Miscalculation’: Greenlandic Politician Warns Trump Over Bid to Take Arctic Island | APT
YouTube video by APT
youtu.be
January 20, 2026 at 11:45 AM
Greenlandic politician Tillie Martinussen on the sovereignty of Greenlanders, the greed in the US, and how they view their land. Also comments on how the US treated Natives, as a very good reason to not want to be a part of the US.
youtu.be/xs53IESxz80?...
youtu.be/xs53IESxz80?...
Reposted by Marshal Hedin
January 19, 2026 at 6:41 AM
Scenes from the Mojave
January 19, 2026 at 3:12 PM
Scenes from the Mojave
Reposted by Marshal Hedin
Incoming Red-tailed Hawk (she flew right over my head.)
January 18, 2026 at 9:53 PM
Incoming Red-tailed Hawk (she flew right over my head.)
Reposted by Marshal Hedin
BREAKING: After Donald Trump said Ukraine was the barrier to peace, President Zelenskyy just released this incredible rebuke. Make sure every American sees this and know Russia is to blame for the war.
January 16, 2026 at 1:52 AM
BREAKING: After Donald Trump said Ukraine was the barrier to peace, President Zelenskyy just released this incredible rebuke. Make sure every American sees this and know Russia is to blame for the war.
Reposted by Marshal Hedin
San Diego Comic-Con will no longer allow AI 'art' to be displayed at their event
"Material created by AI either partially or wholly, is not allowed in the art show"
This follows backlash from artists after SDCC initially indicated AI-generated work would be permitted
"Material created by AI either partially or wholly, is not allowed in the art show"
This follows backlash from artists after SDCC initially indicated AI-generated work would be permitted
January 14, 2026 at 10:45 PM
San Diego Comic-Con will no longer allow AI 'art' to be displayed at their event
"Material created by AI either partially or wholly, is not allowed in the art show"
This follows backlash from artists after SDCC initially indicated AI-generated work would be permitted
"Material created by AI either partially or wholly, is not allowed in the art show"
This follows backlash from artists after SDCC initially indicated AI-generated work would be permitted
Reposted by Marshal Hedin
Registration is open for this year’s domestic BugShot macro photography workshop. I’ve attended a bunch of them, (both domestic and international versions) and have enjoyed every one. The instructors are awesome and I’ve made many friends among fellow attendees. www.bugshot.net/bugshot-new-...
Transform Your Macro Skills: Insect Photography Workshop with Top Experts — BugShot
Join Clay Bolt, Danae Wolfe, and John Abbott at Black Rock Forest for a 4-day macro workshop. Photograph butterflies, dragonflies, beetles, and more through hands-on field sessions, black lighting, ex...
www.bugshot.net
January 13, 2026 at 11:48 PM
Registration is open for this year’s domestic BugShot macro photography workshop. I’ve attended a bunch of them, (both domestic and international versions) and have enjoyed every one. The instructors are awesome and I’ve made many friends among fellow attendees. www.bugshot.net/bugshot-new-...
Pretty skies in SD tonight
January 13, 2026 at 1:17 AM
Pretty skies in SD tonight