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Reposted by David Shiffman, Ph.D. 🦈

Titus Seilheimer @drfishsg.bsky.social · 6h

A smorgasbord of fishes for #SundayFishSketch.

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Reposted by David Shiffman, Ph.D. 🦈

Diego Ortega @diegooa.bsky.social · 14h

#SundayFishSketch 🐠I completed the 2nd row quickly, so third page completed! Top row: Corusichthys megacephalus, Maraldichthys verticalis, Gladiopycnodus karani Bottom row: Monocerichthys scheuchzeri, Ichthyoceros spinosus, Stenoprotome hamata #paleoart

Drawings of pycnodonts, a group of prehistoric fish
Top row: Corusichthys megacephalus, Maraldichthys verticalis, Gladiopycnodus karani
Bottom row: Monocerichthys scheuchzeri, Ichthyoceros spinosus, Stenoprotome hamata

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Reposted by David Shiffman, Ph.D. 🦈

Quake & Quiver @quakeandquiver.bsky.social · 8h

A salmon 🐟 for today's #SundayFishSketch #sciart

A pen drawing of a male salmon, crosshatched in red, blue, and green

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Reposted by David Shiffman, Ph.D. 🦈

Aaron Rupar @atrupar.com · 17h

🥊 Hassett gets his ass kicked by Tapper 🥊 Hassett's efforts to insist Trump's economy is the greatest ever and POTUS has never failed to deliver on his promises did not go well on CNN, as Tapper brought receipts to back up the feeling the majority of Americans have about how hard it is to get by

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 10h

I wished them a marriage as long as a Greenland shark’s life, and if they want a family an easier pregnancy than a sand tiger’s

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Reposted by David Shiffman, Ph.D. 🦈

David Kerstetter, Ph.D. @fishguydave.bsky.social · 10h

So many ways to go with this... and almost every single one of them not wedding receiption-appropriate.

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Reposted by David Shiffman, Ph.D. 🦈

Yvette Cendes @whereisyvette.bsky.social · 10h

This is like how every couple months I feel the urge to post a reminder that we should not, in fact, believe everything we read on the internet. Sometimes people lie too!

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 10h

I’m once again begging otherwise smart people to realize that sometimes the answer to “why have I never heard this before?” Is “because it is not true”

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Reposted by David Shiffman, Ph.D. 🦈

Max @swordznsorcery.bsky.social · 10h

On the plus side, at least they don't eat each other during mating!* * Usually.

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 11h

“I’m sorry, I only peer review for scientific society journals” is a perfectly reasonable stance. It is, however, a weird reason to decline to review for a scientific society journal.

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Reposted by David Shiffman, Ph.D. 🦈

Kevin M. Kruse @kevinmkruse.bsky.social · 13h

Getting your understanding of "progressive thinking" from X is as bad as getting it from Fox News.

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Reposted by David Shiffman, Ph.D. 🦈

Jill Weinberger @jillybobww.bsky.social · 11h

"Wishing you a lifetime of happiness! P.S. Sharks are sluts and proud of it."

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 11h

Yesterday I did a Cameo video as part of someone’s wedding gift. I always include a fun fact about sharks, and the folks ordering the video asked me if any sharks mate for life. Unfortunately they…extremely do not.

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Reposted by David Shiffman, Ph.D. 🦈

Dave Levitan @davelevitan.bsky.social · 11h

These are the 20th and 21st paragraphs of a story titled "Superpowers Race to Put Nuclear Reactors on the Moon" www.nytimes.com/2026/10/04/w...

Target dates have repeatedly slipped, and [highlight] few experts expect the countries to meet their deadlines. [/highlight] Nobody has a proven lander that can lower heavy, potentially radioactive material onto bumpy lunar terrain. Nobody has ever installed a reactor in low gravity.

The moon bases have not been built, and how much electricity they would need is open to speculation. That is why experts say that all or parts of the reactor designs could change.

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Reposted by David Shiffman, Ph.D. 🦈

Kevin M. Kruse @kevinmkruse.bsky.social · 12h

"It's important for you all to stay on the same team as Ken Paxton," says the woman who filed for divorce and ended their marriage

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Reposted by David Shiffman, Ph.D. 🦈

Peter Gausmann @petergausmann.bsky.social · 12h

This is a very interesting approach as the results of this study have shown. The use of artificial bycatch has reduced shark bycatch remarkably! 🦈🌊💙

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Reposted by David Shiffman, Ph.D. 🦈

Lisa @tuexplorer1.bsky.social · 12h

Stomiidae? @schmidtocean.bsky.social dive 965 #samplinggap #MarineLife

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 12h

Salmon Are Thriving After Klamath Dam Removals, Study Finds| Conservation need not be complicated. Often humans just have to stop doing the thing that was harming nature and it’ll repair itself. www.nytimes.com/2026/09/24/c...

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Reposted by David Shiffman, Ph.D. 🦈

Kevin M. Kruse @kevinmkruse.bsky.social · 14h

Just a reminder that these Haitian immigrants in Springfield -- who came here legally, did everything they were asked to do and more -- became a target of federal crackdowns because the white nationalist vice president shamelessly spread racist lies about them.

rollingstone.com

J.D. Vance Defends False Claims Against Haitians: 'If I Have to Create Stories… That's What I'm Going to Do'

J.D. Vance defended his debunked claims that Haitian immigrants are eating pets in Springfield, Ohio.

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Reposted by David Shiffman, Ph.D. 🦈

Kristen Behrens, PhD @behrenskristen.bsky.social · 13h

#SundayFishSketch is a quick little Red Handfish, since he ended up being the fish of choice for my field trip presentation this week!

Colored pencil drawing of a red handfish. As the name implies, his pectoral fins are red and very human hand-looking. He also has a fin coming out of his forehead shaped like a triangle that reminds me of a dinosaur.

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Reposted by David Shiffman, Ph.D. 🦈

Union of Concerned Scientists @ucs.org · 13h

This past Monday, UCS President & CEO @gretchentg.bsky.social testified before the Senate Environment and Public Works Committee about the Trump administration’s unrelenting attacks on science. Here's her testimony:

blog.ucs.org

Attacks on Science, Who's Behind Them, and Their Harm: My Congressional Testimony

Dr. Gretchen Goldman testified before the Senate Environmental and Public Works committee on the effects of attacks on science.

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Reposted by David Shiffman, Ph.D. 🦈

Daryll Marie @daryllmarie.bsky.social · 13h

Our 3 weeks offshore on the R/V Neil Armstrong have officially come to an end! What a blast, I haven’t had this much fun on a fieldwork excursion in over a decade. Lovely people, successful science, & epic wildlife!

The sun setting over the ocean on our last full day of a research cruise at sea. The sky is orange, and wispy clouds partially cover the sun

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 13h

Public support for establishing marine protected areas: an Italian case study www.sciencedirect.com/science/arti... 🧪🌎🦑🐟

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 14h

🧪🌎🦑🐟 Testing artificial baits in the Mexican shallow-set longline fishery www.sciencedirect.com/science/arti...

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Reposted by David Shiffman, Ph.D. 🦈

jamelle @jamellebouie.net · 14h

remarkable piece of journalism. really worth reading.

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 15h

Want more shark science and conservation on your Bluesky feed? go.bsky.app/Q1x1gJB

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Reposted by David Shiffman, Ph.D. 🦈

Taniel @taniel.bsky.social · 15h

If you're in these 3 states, *TODAY* is deadline to register to vote. Alaska Rhode Island South Carolina Even if you think you've registered: doesn't hurt to check everything is in order. Do it now. And there's a lot to vote for across them. A thread with stakes on each. ⬇️

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Reposted by David Shiffman, Ph.D. 🦈

Virginia Schutte @vgwschutte.bsky.social · 15h

4/🧵 For a lot of my projects, I chat about science or share what a science life is like on social media WClivestream presenters (for the 2025 @wclivestream.bsky.social) go.bsky.app/HuJzSQu #OceanChat (organized by @whysharksmatter.bsky.social) go.bsky.app/MGCbG19

The starter pack cover art for "WClivestream presenters"

The starter pack cover art for "#OceanChat"

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Reposted by David Shiffman, Ph.D. 🦈

Virginia Schutte @vgwschutte.bsky.social · 15h

3/🧵 I do a lot of different things within that general role title! Sometimes art Wildlife Art and Scientific Illustration go.bsky.app/ASnS846

The starter pack cover art for "Wildlife Art and Scientific Illustration"

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Reposted by David Shiffman, Ph.D. 🦈

Virginia Schutte @vgwschutte.bsky.social · 15h

2/🧵 I'm employed as a science communicator Sci-Commers go.bsky.app/NMCFMcj Science communication experts go.bsky.app/J6GgzhV

The starter pack cover art for "Sci-Commers"

The starter pack cover art for "Science communication experts"

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Reposted by David Shiffman, Ph.D. 🦈

Virginia Schutte @vgwschutte.bsky.social · 15h

Starter packs I'm in, in case you want to find people who are like me to follow (I'm in a few that I don't understand or are just for joke purposes tho and I'm not linking to those in this thread 😇 ) 1/🧵 I'm a marine ecologist Ocean Women go.bsky.app/7MdiLgo Science Intros go.bsky.app/At5DDri

The starter pack cover art for "Ocean Women"

The starter pack cover art for "Science intros thread"

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 15h

Not that you asked, but the new Paramount deal also includes the Discovery Channel (and Shark Week). Donald Trump watched Shark Week with Stormy Daniels, and him talking about Shark Week played a key role in his felony convictions.

static.klipy.com

You See It Is All Part of the Plan Meme

ALT: You See It Is All Part of the Plan Meme

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 16h

Weird, Very Serious People assure me that it doesn’t matter if Shark Week lies because no one ever takes it seriously 🧐

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Reposted by David Shiffman, Ph.D. 🦈

ProPublica @propublica.org · 16h

For years, Project 2025 architect Russell Vought has set out to erode our system of checks and balances of power and to concentrate power in the hands of one person: President Trump. Now he’s quietly making it all happen. 🔊 Listen to this episode: propub.li/3TzIyaA

“I don’t want President Trump having to lose a moment of time having fights in the Oval Office about whether something is legal or doable or moral.” - Russell Vought, Director of the White House Office of Management and Budget

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Reposted by David Shiffman, Ph.D. 🦈

Eugene Freedman @eugenefreedman.bsky.social · 19h

It decimated the federal workforce - not overhauled it. The elimination of expertise. The destruction of capacity. It also did NOT slash government spending. Spending is UP. It has been reallocated to the secret police and military. Stop publishing falsehoods.

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 18h

How Mantis Shrimp Eyes Allow Them to See Differently The unique eyes of the mantis shrimp swivel and scan, and the animals may remember what they see www.scubadiving.com/marinelife/h...

scubadiving.com

How Mantis Shrimp Eyes Allow Them to See Differently

<p>The unique eyes of the mantis shrimp swivel and scan, and the animals may remember what they see.</p>

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 18h

More hair on bottom of face distract from less hair on top of face

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 18h

If you’re attending IMCC and would like to join a group chat for planning social fun things like dinners while there, let me know.

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 18h

I miss harmless ignorance. (None of those people called in bomb threats to coast guard headquarters, or swatted the homes of coast guard employees)

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Reposted by David Shiffman, Ph.D. 🦈

Andrew D Thaler @drandrewthaler.bsky.social · 18h

No matter how bleak things may seem, just remember that in the 1960s the US Coast Guard received reems of earnest letters begging them to save those poor castaways on Gilligan's Island.

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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 18h

Please enjoy this comment on my Facebook page, on an article about discovering a new species of shark that I shared, that resulted in me blocking someone.

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Reposted by David Shiffman, Ph.D. 🦈

The News, But In Klingon™ @newsinklingon.bsky.social · 18h

qaStaH beSbal qaD mIr. ‹SIqagho› paSlogh chIS 'oH wa' jeStaHbogh ghom'e'. ghomvetlh maS tera' maqlegh'a' ghen vav ye ‹lIy'o› wa'maH loSDIch net Sov. ghom QaHlI''a' tera'ngan Qun? tuch wItu'!

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Reposted by David Shiffman, Ph.D. 🦈

Biodiversity Pics @biodiversitypix.bsky.social · 20h

🦄 A history of the fishes of the British Islands.. London, Groombridge and Sons, 1862-65.. [Source]

Seahorse illustration from historical archives

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