404 Media

2025-08-23 13:00:38

Scientists Discovered Bats Group Hugging and It’s Adorable

Welcome back to the Abstract! Here are the studies this week that ruled the roost, warmed the soul, and departed for intergalactic frontiers.

It will be a real creature feature this week. First, we will return to the realm of bats and discover that it is, in fact, still awesome. Then: poops from above; poops from the past; a very special bonobo; and last, why some dead stars are leaving the Milky Way in a hurry.

Bat hugs > Bear hugs

Tietge, Marisa et al. “Cooperative behaviors and social interactions in the carnivorous bat Vampyrum spectrum.” PLOS One.

Welcome to The Real World: Bat Roost. Scientists installed a camera into a tree hollow in Guanacaste, Costa Rica to film a tight-knit family of four spectral bats (Vampyrum spectrum) over the course of several months. The results revealed many never-before-seen behaviors including bats hugging, playing with cockroaches, and even breaking the fourth wall.

“We provide the first comprehensive account of prey provision and other social behaviors in the spectral bat V. spectrum,” said researchers led by Marisa Tietge of Humboldt University in Berlin. “By conducting extensive video recordings in their roost, we aimed to document and analyze key behaviors.”

Spectral bats are the biggest bats in the New World, with wingspans that can exceed three feet. They are carnivorous—feasting on rodents, birds, and even other species of bat—and they mate in monogamous pairs, which is unusual for mammals. But while huge flesh-eating bats sound scary, the new study revealed that these predators have a soft side.

For example, the footage captured a “greeting” ritual that included “a hugging-like interaction between a bat already in the roost and a newly arrived bat,” according to the study.

“The resident bat may actively approach or greet the newcomer as it reaches close proximity in the main roosting area,” the team said. “The greeting behavior is comparable to the initiation to social roosting, where at least one bat wraps its wings around the other, establishing a ball-like formation for several seconds. This behavior is often accompanied by social vocalizations.”
youtube.com/embed/NF4hOKhdCOA?…
There’s nothing like coming home after a graveyard shift to a warm welcome in a fuzzy ball-like formation. In keeping with their gregarious nature, the footage also showed that the bats are very generous with sharing prey, with only a single instance of a “tug-of-war” breaking out over dinner.

“Prey provision was a clearly cooperative social behavior wherein a bat successfully captured prey, brought it to the roost where group members were present, and willingly transferred the prey to another bat,” the researchers said. “Audible chewing noises are a distinctive feature of this process.”

Loud chewers in any other context are profoundly irritating, but these bats get a pass because it’s kind of hard to be quiet while crunching through mouse bones perched upside-down.

In addition to all the hugging and prey-sharing, the bats were also observed playing together by chasing cockroaches or, in one case, messing with the camera by altering its position. I can’t wait for the next season!

In other news…

Skyward scat

Uesaka, Leo and Sato, Katsufumi. “Periodic excretion patterns of seabirds in flight.” Current Biology.

Speaking of putting cameras in weird places, why not strap them to the bellies of seabirds? Scientists went ahead and did this, ostensibly to examine the flight dynamics of streaked shearwaters, which are Pacific seabirds. But the tight focus on the bird-bums produced a different revelation: Shearwaters almost exclusively poop while on the wing.
youtube.com/embed/SnJLvNyMjUA?…
“A total of 195 excretions were observed from 35.9 hours of video data obtained from 15 streaked shearwaters,” said authors Leo Uesaka and Katsufumi Sato of the University of Tokyo. “Excretion immediately after takeoff was frequent, with 50 percent of the 82 first excretion events during the flying periods occurring within 30 seconds after take-off and 36.6 percent within 10 seconds.”

“Occasionally, birds took off, excreted, and returned to the water within a minute; these take-offs are speculated to be only for excretion,” the team continued. “These results strongly suggest that streaked shearwaters intentionally avoid excretion while floating on the sea surface.”

This preference for midair relief might allow seabirds to lighten their load, prevent backward contamination, and avoid predators that sniff out excrement. Whatever the reason, these aerial droppings provide nutrients to ocean ecosystems, so bombs away.

Please clean up after your 9,000-year-old dog

Slepchenko, S.M. et al. “Early history of parasitic diseases in northern dogs revealed by dog paleofeces from the 9000-year-old frozen Zhokhov site in the New Siberian Islands of East Siberian Arctic.” Journal of Archaeological Science.

Hold onto your butts, because we’re not done with scatological science yet. A study this week stepped into some very ancient dog doo recovered from a frozen site on Siberia’s Zhokhov Island, which was inhabited by Arctic peoples 9,000 years ago.

By analyzing the “paleofeces,” scientists were able to reconstruct the diet of these canine companions, which were bred in part as sled dogs. The results provide the first evidence of parasites in Arctic dogs of this period, suggesting that the dogs were fed raw fish, reindeer, and polar bear.

“The high infection rate in dogs with diphyllobothriasis indicates a significant role of fishing in the economic activities of Zhokhov inhabitants, despite the small amount of direct archaeological evidence for this activity,” said researchers led by S.M. Slepchenko of Tyumen Scientific Center. “The presence of Taeniidae eggs indicates that dogs were fed reindeer meat.”

The team also noted that after excavation, the excrement samples were “packaged entirely in a separate hermetically sealed plastic bag and labeled.” It seems even prehistoric dog poop ends up in plastic bags.

Kanzi the unforgettable bonobo

Carvajal, Luz and Krupenye, Christopher. “Mental representation of the locations and identities of multiple hidden agents or objects by a bonobo.” Proceedings of the Royal Society B.

Playing hide-and-seek with bonobos is just plain fun, but it also doubles as a handy experiment for testing whether these apes—our closest living relatives—can track the whereabouts of people, even when they are out of sight.

Kanzi, a bonobo known for tool use and language skills, participated in experiments in which his caretakers hid behind screens. He was asked to identify them from pictures or voices and succeeded more than half the time, above chance (here’s a video of the experiment).

”Kanzi presented a unique and powerful opportunity to address our question in a much more straightforward way than would be possible with almost any other ape in the world,” said authors Luz Carvajal and Christopher Krupenye of Johns Hopkins University. “He exhibited not only strong engagement with cognitive tasks but also rich forms of communication with humans—including pointing, use of symbols, and response to spoken English.”
Kanzi was also a gamer who played Pac-Man and Minecraft. Image: William H. Calvin, PhD -
Sadly, this was one of Kanzi’s last amazing feats, as he died in March at the age of 44 in his long-time home at the Ape Initiative in Des Moines, Iowa. But as revealed by this posthumous study, Kanzi’s legacy as a cognitive bridge between apes lives on. RIP to a real one.

Zero to 4.5 million mph in a millisecond

Glanz, Hila and Perets Hagai B. et al. “The origin of hypervelocity white dwarfs in the merger disruption of He–C–O white dwarfs.” Nature Astronomy.

We will close with dead stars that are careening out of the galaxy at incomprehensible speeds. These objects, known as hypervelocity white dwarfs, are corpses of stars similar in scale to the Sun, but it remains unclear why some of them fully yeet themselves into intergalactic space.

“Hypervelocity white dwarfs (HVWDs) are stellar remnants moving at speeds that exceed the Milky Way’s escape velocity,” said researchers co-led by Hila Glanz and Hagai B. Perets of the Technion–Israel Institute of Technology. “The origins of the fastest HVWDs are enigmatic, with proposed formation scenarios struggling to explain both their extreme velocities and observed properties.”

The team modeled a possible solution that involves special white dwarfs with dense carbon-oxygen cores and outer layers of helium, known as hybrid helium-carbon-oxygen (HeCO) white dwarfs. When two He-CO white dwarfs merge, it may trigger a “double-detonation explosion” that launches one of the objects to speeds of about 4.5 million miles per hour.

“We have demonstrated that the merger of two HeCO white dwarfs can produce HVWDs with properties consistent with observations” which “provides a compelling explanation for the origin of the fastest HVWDs and sheds new light on the diversity of explosive transients in the Universe,” the researchers concluded.

With that, may you sail at hypervelocity speeds out of this galaxy and into the weekend.

Thanks for reading! See you next week.

Cooperative behaviors and social interactions in the carnivorous bat Vampyrum spectrum

Bats exhibit a diverse array of social behaviors, yet detailed studies on the intricacies of these interactions, particularly in rare species like the spectral bat (Vampyrum spectrum), remain scarce.

^{journals.plos.org}

404 Media

2025-08-22 15:56:28

404 Media at Two Years: How We've Grown, and What's Next

Last week, we were talking to each other about the fact that we were about to hit the second anniversary of 404 Media. The conversation was about what we should say in this blog post, which obviously led us to try to remember everything that has happened in the last year. “I haven’t considered a thing beyond what’s been five seconds behind or in front of me for the last year,” Sam said.

The last year has been a whirlwind not just for us but for, uhh, the country and the world. And we’ve been trying our absolute best to bring you stories you can’t find anywhere else about the wildest shit happening right now, which includes the Silicon Valley-led dismantling of the federal government, the deployment of powerful surveillance against immigrants and people seeking abortions, the algorithmic, AI-led zombification of “social” media, the end of anonymity on the internet, and all sorts of weird stuff that we see on our travels through the internet. As Sam noted, we have largely had our heads down trying to bring you the best tech journalism on the internet, which hasn’t left us a ton of time to think about long-term projects, blue-sky ideas, or what the best business strategies for growing this company would be.

Our guiding principle is something we said we would do on day one of starting this company: “We believe it is possible to create a sustainable, profitable media company simply by doing good work, making common-sense decisions about costs, and asking our readers to support us.” What we have learned in two years of building this company is that there is no secret to building a media company, and that there are also no shortcuts. When we work hard to publish an important article, more people discover us and more people subscribe to us, which helps solidify our business and allows us to do more and better articles. As our stories reach a larger audience, the articles often have more impact, more potential sources see them, and we get more tips, which leads to more and better articles, and so on.

In our second year as a media outlet, we’ve done too much impactful reporting to list out in this post. But to summarize some of the big ones:

• We revealed that ICE was tapping into Flock, a nationwide AI-enabled camera network, thanks to local cops. Since then, a police department shut off external access to its cameras after learning they were being searched for immigration related offenses and Austin banned Flock in its city and specifically cited our reporting. The company now says it has severed access to Illinois data for 47 agencies. In response to our story about a Texas cop who searched Flock cameras nationwide for a woman who had a self-administered abortion, the Illinois Secretary of State is investigating the respective suburban Chicago police department because this data sharing violates state law. Congress opened a formal investigation into Flock because of our reporting.
• Meta sued a nudify app that 404 Media reported bought thousands of ads on Instagram and Facebook.
• We broke the news that TeleMessage, a Signal-clone used by the Trump administration, was hacked. Lawmakers demanded answers from the DOJ, and Customs and Border Protection (CBP), which used TeleMessage, paused its use of the tool. TeleMessage itself suspended operations too.
• Civitai, a site 404 Media has repeatedly shown was used to generate nonconsensual adult content, banned all AI models designed to generate the likeness of real people.
• After we found Meta's AI Studio chatbots were posing as therapists with fake license numbers and credentials, four senators demanded answers from Meta and a digital rights organizations filed a complaint with the FTC.
• We uncovered that 100,000 people were using a Telegram bot that made non-consensual AI sex videos of anyone. After we covered it, Telegram shutdown the bot.
• We found that Coca Cola was running an AI-powered ad that got basic facts wrong and fabricated quotes from authors. Coca Cola pulled down the ad in response.
• A public library ebook service said it was going to cull AI slop after we found low quality books were flooding libraries.
• Nvidia was sued after we revealed the company scraped YouTube and other sites en masse to build its own AI systems.
• Congress repeatedly grilled Apple and Meta over their association with nonconsensual nudify and deepfake apps after we exposed the connections.

On top of all of these, we’ve published some of the most moment-defining stories that, as Jason has said many times, are the types of things people talk about at the bar after work. Those include:

• Discovering that anyone could push updates to the DOGE website
• Establishing and defining “AI Slop” as a genre (Shrimp Jesus anyone?) and uncovering the economics that make slop popular and profitable
• Following the creep of age verification and censorship across the U.S.
• The leaked plans from Palantir that outline how the company helps deport people
• The “total chaos” at Meta after Trump took office and Zuck went anti-DEI
• Breaking the news of the Tea hacks and continuing to publish new scoops on that saga

It has been a relief that this business strategy of “publish good articles and ask people to pay for journalism” still works, despite the fracturing of social media, the slopification of every major platform, AI being shoved into everything, and the rich and powerful trying to destroy journalism at every turn. That it is working is a testament to the support of our subscribers. We have no real way of knowing exactly where new subscribers come from or what ultimately led them to subscribe, but time and time again we have learned that the most important discovery mechanism we have is word of mouth. We have lost count of the number of times a new subscriber has said that they were told about 404 Media by a friend or a family member at a party or in a group text, so if you have told anyone about us, we sincerely thank you.

Photos by Sharon Attia

It wasn’t obvious when we started this company that it would actually work, though we hoped that it would.

In our post last year, we wrote, “We don’t have any major second-year plans to announce just yet in part because we have been heads down working on some of the investigations and scoops you’ve seen in recent days. The next year holds more scoops, more investigations, more silly blogs, more experiments, more impact, and more articles that hold powerful companies and people to account. We remain ambitious and are thinking about how to best cover more topics and to give you more 404 Media without spreading ourselves too thin.”

But we did take a moment to think about what has changed in the last year, and it turns out that quite a lot is different now than it was a year ago.

For one, we have cautiously begun to expand what we do. In the last year, we launched The Abstract, which is Becky Ferreira’s Saturday newsletter about science, which many of you have said you love and which helps us provide a sense of wonder and discovery when so much of what we report on is pretty bleak. We have been getting part-time (but very critical) help from Case Harts who is running and growing our social media accounts, which is helping us put our stories more natively on Instagram, TikTok, YouTube, and other platforms that we do not control but which nonetheless remain important for us to be on. Matthew Gault has started covering the military industrial complex, AI, weird internet, and dad internet beat for us, and has done a remarkable job at it. Rosie Thomas is our current intern who has published critical reporting about the sale of GPS trackers on TikTok, protests at the Tesla Diner, and the difficult decisions voice actors need to make about whether they should let AI train on their voices.

All of this has changed what 404 Media looks like, a little bit. We have spent a lot of time thinking about what it would look like to expand beyond this, why people subscribe to us, what it would mean to go further, and what the four of us are actually capable of handling outside of the journalism. Because of your support we are in a place where we’re able to ask questions beyond “Can we survive?” We’re able to ask questions like: “Should we try to make this bigger, and what does that look like?”

We feel incredibly lucky that we are now able to ask ourselves these questions, because there was no guarantee that 404 Media would ever work, and we are forever grateful to everyone who has supported us. You have helped us prove that this model can work, and every day we are delighted to see that other journalists are striking out on their own to create their own publications.

Tip Jar

We are still DIYing lots of things. Emanuel is still doing customer support. Jason is still ordering, packing, and mailing merch. Sam is putting together events and parties. Joseph is doing an insane number of things behind the scenes, managing the podcast, working closely with one of our ad partners, and fixing technical issues. As we have grown, these tasks have started to take more and more time, which raises all sorts of questions about when and if we should get help with them. Should we do more events? Should we get someone to help us with them? What does that look like logistically and financially? These are the things that we’re working out all the time. It becomes a question of how much can we juggle while still having some semblance of work/life balance, and while making sure that we’re still putting the journalism first.

Other things that have happened:

• We began a republication partnership with WIRED that recently evolved to include a few coreported collaborations that have allowed us to team up on investigations we may not have been able to do by ourselves.
• We were subpoenaed for our sources on an article by Texas Attorney General Ken Paxton. We successfully fought off this subpoena with the help of our lawyer, which was expensive but which we were able to do because of your support. We are very proud of this.
• We have been invited to talk about 404 Media and our journalism at conferences and events around the world. Emanuel gave a journalism training in Costa Rica, Jason taught a group of Norwegian journalists how to file FOIA requests and gave a presentation at the Computer History Museum in Mountain View, Joseph spoke at the Hackers on Planet Earth conference, Sam went to Perugia, Italy to join a panel at the International Journalism Conference, and Sam and Jason talked about indie media at the last XOXO in Portland.
• We threw a party and live panel at SXSW (with the help of our friends at Flipboard), a DIY party at RIP.SPACE in Los Angeles, and we threw an anniversary party and podcast recording last night in Brooklyn.
• After the Trump administration took office, we got to work documenting all of the ways the internet and broader policy started shifting and how tech, surveillance, and immigration intersected, and continued years of holding power accountable through our journalism.
• We had much of our ICE and immigration coverage professionally translated into Spanish and republished without a paywall, which helps communities that benefit the most from our reporting on those topics get it as easily and accurately as possible.
• We took our first-ever break!
• We have moved to Ghost 6.0, which is not something we really did, but it’s important to point out that the new version of our CMS is built with native ActivityPub support, meaning our articles are automatically going into the Fediverse and are being mirrored directly onto Bluesky. We are very excited about the possibilities here as we continue to believe that the healthiest future of journalism and the internet is one where we create direct relationships with our readers that have as little algorithmic friction as possible. Ghost is an open-source nonprofit whose mission is very similar to 404 Media’s.

Like last year, we don’t have anything crazy to announce for year three. But we hope that you will continue to support us (or, if you’re finding us through this post, will consider subscribing). We discussed some of our hopes and dreams for year three in our latest bonus podcast that went out to supporters this week. We are all trying our very best to bring you important, impactful work as often as possible, and we are trying to be as clear as possible about what’s working, what’s not, and how we’re trying to build this company. So far, that strategy has worked really well, and so we don’t intend to change it now.

Gone Fishin': 404 Media Summer Break 2025

404 Media is closed this week. School's out.

^{Jason Koebler (404 Media)}

404 Media

2025-08-22 15:55:53

Behind the Blog: Our Second Anniversary Party!

This is Behind the Blog, where we share our behind-the-scenes thoughts about how a few of our top stories of the week came together. This week, we have a slightly shorter than usual entry from the gang, with some party pics and musical selections from the night.

SAM: We’re all still recovering, processing, and floating on the overwhelming support and encouragement we felt from everyone who came to the second anniversary party last night. Thank you again to our sponsor for the evening, DeleteMe (get 20% off with them here as a thank-you to our community with code 404media) and farm.one for being awesome hosts, and especially thank you to everyone who came, cheered us on from afar, and made the last two years possible.

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Behind the Blog: Our Second Anniversary Party!

^{Samantha Cole (404 Media)}