David Shiffman, Ph.D. 🦈

David Shiffman, Ph.D. 🦈

@whysharksmatter.bsky.social

I am a marine conservation biologist studying sharks and a science writer. Posts are about science and the environment, science communication, and more! He/him

135,657 Followers 1,499 Following 113,712 Posts Joined Apr 2023
3 hours ago

Erin I am so tired

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5 hours ago
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Marine biologist Edie Widder chases bioluminescence in new ‘Life Illuminated’ film The documentary A Life Illuminated will make its Washington, D.C., premiere on March 19, the first night of the D.C. Environmental Film Festival, where Mongabay is a media partner. The film traces…

Marine biologist Edie Widder chases bioluminescence in new ‘Life Illuminated’ film

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7 hours ago
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Frontiers | Extreme marine heatwaves drive divergent kelp forest trajectories and alternative stable states Kelp forests are experiencing extreme declines globally, yet local social-ecological factors may mediate their responses to climate perturbations. Using a co...

Frontiers | Extreme marine heatwaves drive divergent kelp forest trajectories and alternative stable states www.frontiersin.org/journals/mar... 🦑🌎🧪

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8 hours ago
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Outlook for migratory species worsens amid habitat loss & avian flu, report finds From shorebirds flying between their Arctic breeding grounds and southerly foraging ranges to freshwater fish returning to native spawning streams, migratory animals are struggling. About half of all…

Outlook for migratory species worsens amid habitat loss & avian flu, report finds

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8 hours ago

Science and environment journalist friends: I have a spot for you on an upcoming shark research expedition! Want to come, see some shark research, and learn about the important work the lab is doing? Let's chat. DMs open.

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9 hours ago
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Universities and the UN Ocean Decade: a vision for 2030 and beyond Abstract. Universities play a critical role in equipping the next generation of ocean professionals with the skills, knowledge, and perspectives required t

Universities and the UN Ocean Decade: a vision for 2030 and beyond academic.oup.com/icesjms/arti... 🧪🌎🦑

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9 hours ago

Great show. Strong season finale.

Possibly the worst CGI whale I've ever seen.

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9 hours ago
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Researchers 'ping' great white shark near Vancouver Island | CBC News It’s far from the sandy shores of Florida, where you might expect to see a great white shark, but earlier this week, one "pinged" off the coast of Vancouver Island, researchers say.

A great white would be AMAZING to see! 🦈👀

www.cbc.ca/news/canada/...

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9 hours ago

I was gonna do this with Rose Danio

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9 hours ago

50 Shads of Grey

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9 hours ago
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patrick star from spongebob squarepants is laying down with his hands on his face and says `` i 'm listening '' . ALT: patrick star from spongebob squarepants is laying down with his hands on his face and says `` i 'm listening '' .

As a fan of both the horny dragons and horny fairies series lately...

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9 hours ago

What... what happened here

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10 hours ago

Why is animal print almost exclusively big cat patterns when these creatures exist?

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10 hours ago
The US slashed medical research grants in nearly every field. 

From, Pratik Pawar/Vox

https://www.vox.com/future-perfect/482363/nih-medical-research-grants-cut-2025?view_token=eyJhbGciOiJIUzI1NiJ9.eyJpZCI6ImJsVWFZMk1PSzEiLCJwIjoiL2Z1dHVyZS1wZXJmZWN0LzQ4MjM2My9uaWgtbWVkaWNhbC1yZXNlYXJjaC1ncmFudHMtY3V0LTIwMjUiLCJleHAiOjE3NzQ2MTkyOTIsImlhdCI6MTc3MzQwOTY5Mn0.DntsxOVbCb9ha3Xw0ZBEvzobSo4z6K2EWfc1qfJk728&utm_medium=gift-link

Bhattacharya in @whyshoulditrustyou.bsky.social interview

"Literally, there have not been any funding cuts."

Data from NIH reporting: across-the-board cuts.

It is time for the public & policy makers to grapple with the real-world impacts when HHS leaders do not engage in good faith.

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11 hours ago
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Why saving seagrass meadows could help save the world’s coastlines Seagrass meadows might not catch the eye like coral reefs, but they play an important and often unsung role in coastal protection, particularly as climate change increasingly eats away at shorelines.…

Why saving seagrass meadows could help save the world’s coastlines

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12 hours ago

Screensaver-ass whale.

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12 hours ago

I'm sincerely surprised there are that many winners, because there's so much random chance

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12 hours ago
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@whysharksmatter.bsky.social if I won the lottery I’d never tell anyone but there would be signs

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12 hours ago

Kevin it's so bad

I know several people whose lives were destroyed by this shit. And I don't know if anyone, other than the owners of these betting companies, has benefitted.

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1 day ago

Watch this clip.

Professors will recognize this kid as the student who didn't do the reading but still has very strong opinions about how it's all "bullshit," except this time he's not the callow student who's going to fail your course, he's the reviewer who's going to cancel your grant.

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12 hours ago

Fact check: true

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12 hours ago

Ok friends, once again, when we're discussing US higher education policy:

The "Ivy League" is an athletic conference, just like the SEC or Big Ten. It does not mean "the best schools." (Many Ivy League schools are ranked very highly, many non-Ivy League schools are ranked higher than some of them).

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12 hours ago
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Frontiers | Harnessing environmental DNA: revolutionizing holistic monitoring of aquatic biodiversity for fishery management under the One Health framework Fishery resources are among the most economically valuable assets from aquatic ecosystems, underpinning global food security, nutrition, and livelihoods. How...

Frontiers | Harnessing environmental DNA: revolutionizing holistic monitoring of aquatic biodiversity for fishery management under the One Health framework

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12 hours ago
Scholarship Opportunities Our summer scholarship competition for 2026 is now open! ​Applications close March 25th. ​

Full-ride and partial scholarships available for summer marine biology field research methods courses 🧪🦑🌍

www.getintothefield.com/scholarship-...

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17 hours ago
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Unexplored deep-water worlds in Caribbean revealed for the first time Scientists discover underwater mountain ranges, golden towers of coral, and never-before-seen sea creatures.

🚨 Scientists have tracked a pygmy blue whale by drone for the first time, revealing a previously unknown migration corridor from Indonesia to Australia.

This breakthrough helps protect the endangered species from shipping lanes, ocean noise, and climate threats. 🐋

https://bbc.in/40R4ttH

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14 hours ago
Underwater scene with aquatic plants and a purple leaf, featuring text highlighting the Canadian Journal of Fisheries and Aquatic Sciences Editor's Choice.

⭐Editor's Choice⭐

George Rose reviews the science and management of Canada's northern cod, ten years after reporting in CJFAS on the stock's comeback from near extirpation https://ow.ly/fkvF50Yqaeo

#Fisheries

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13 hours ago
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Tripod next to what I thought was a Psychropotes, but now I'm not so sure which cuke that is. Looks like a loogie with a handle. @schmidtocean.bsky.social dive 695 part 2 #nazcahighseas #MarineLife

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13 hours ago

I…I do not know that shoebills were that tall

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13 hours ago
Photographs of a dinosaur-looking bird, the shoebill, and popstar Sabrina Carpenter, overlaid with a height comparison showing both are 152 cm, with visual graphics saying the magazine's name SSWAGGER and some Chinese characters Photographs of a shoebill and popstar Sabrina Carpenter overlaid with a height comparison showing that, yes indeed, both are just 152 cm I can't even begin to describe this photograph. I think that might be Taylor Swift on a night out with Sabrina Carpenter. But Sabrina is photoshopped to have a shoebill face and talons, with wing-tips coming out her coat but still Sabrina's hair

Just incredible shoebill awareness-raising from this Hong Kong teens' magazine

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13 hours ago
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Are you a grad student, postdoc, or early career researcher interested in sea-level science? Apply to the WHOI+NASA Summer School in Sea-Level Science, taking place May 17-30 in Woods Hole!

Applications accepted until March 20.

📲Learn more at more whoi.edu/summer-school or email ssisls@whoi.edu

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