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Sources: the US Department of Agriculture is investigating Neuralink for potential animal welfare violations after staff complaints over rushed animal testing

Elon Musk's Neuralink, a medical device company, is under federal investigation for potential animal-welfare violations amid …

Reuters Rachael Levy

Context & Ripple Effects

The USDA inquiry follows earlier allegations from an animal-rights group that described Neuralink’s monkey testing as invasive and deadly, claims the company defended in its response to the animal-testing allegations. It puts staff accounts of rushed testing into a federal oversight channel.

The case is one element of a widening compliance record around Neuralink: later coverage also documented a DOT pathogen-transport investigation and an FDA clinical-trial rejection citing device concerns. Those matters are distinct, but together make regulatory execution central to the company’s path toward human studies.

First-order effects

  • Neuralink faces a USDA review of its animal-testing practices, with staff complaints about rushed experiments now subject to federal scrutiny.
  • The investigation increases pressure on Neuralink’s animal-research operations before its brain-implant program can move beyond preclinical work.

Second-order effects

  • Neuralink must manage animal-welfare oversight alongside later transport and device-safety inquiries, creating separate compliance tracks rather than a single product-approval process.
  • The FDA’s later rejection of Neuralink’s clinical-trial application shows that progress to human testing depended on resolving technical safety issues as well as maintaining credible preclinical practices.

Third-order effects

  • If this pattern holds, U.S. brain-computer-interface developers will be evaluated across the full development chain—animal research, laboratory handling, and implant safety—before human-study ambitions can translate into clinical progress.
  • For companies such as Neuralink and Merge Labs advancing BCI technology in the U.S., regulatory operations become a competitive capability alongside implant design.

The trend: Brain-computer-interface development is becoming a multi-agency compliance challenge in which preclinical conduct and device readiness are inseparable from the race to human trials.

Discussion

  • @rachael_levy Rachael Levy on x
    NEW from me: @elonmusk's @neuralink is under federal investigation for potential violations of animal welfare laws amid internal staff complaints that its animal testing is being rushed, causing needless suffering and deaths. https://twitter.com/...
  • @marionawfal Mario Nawfal on x
    🚨US government launches federal investigation into Elon Musk's Neuralink company BUT Before freaking out, this is not a major investigation. Context: “investigation for potential animal-welfare violations amid internal staff complaints that its animal testing is being rushed”
  • @thephilosotroll @thephilosotroll on x
    This reporting is really disturbing, because it shows *both* extensive animal welfare abuses and a background company that is totally irresponsible in its R&D practices. Neuralink will not produce a working device, but it may lobotomize people with irresponsible practices. https:…
  • @green_footballs Charles Johnson on x
    Hey now. I'm thinking that anyone who treats human beings this badly probably has even less regard for animals. https://twitter.com/...
  • @realspikecohen Spike Cohen on x
    @unusual_whales The same government that funds torture of puppies around the world would like you to know that they're very concerned about Neuralink's use of animal testing. Surely this has nothing to do with recent revelations by Elon regarding US government collusion with big …
  • @paraschopra Paras Chopra on x
    This makes me extremely sad. It's about Neuralink but the problem of animal experimentation is widespread. https://twitter.com/...
  • @avi_bueno Avi Bueno on x
    Yeah, definitely a guy I'd trust and someone who should be in charge of working to put a chip in people's brains. https://twitter.com/...
  • @ct_bergstrom Carl T. Bergstrom on x
    Wait, what? (From Reuters: Musk's Neuralink faces federal probe, employee backlash over animal tests) https://www.reuters.com/... https://twitter.com/...
  • @robertskvarla Robert Skvarla on x
    This is literally what Neuralink is tho https://twitter.com/... https://twitter.com/...
  • @mattbinder Matt Binder on x
    me frantically running up to those animals as they board: “don't get on that ship! ark of space...it's a Neuralink lab!” https://twitter.com/... https://twitter.com/...
  • @bradheath Brad Heath on x
    From @Reuters: Elon Musk's Neuralink, a medical device company, is under federal investigation for potential animal-welfare violations amid internal staff complaints that its animal testing is being rushed, causing needless suffering and deaths. https://www.reuters.com/...
  • @ct_bergstrom Carl T. Bergstrom on x
    If this is true, and not just someone weaseling out of answering the question, this looks to me like Theranos-level buffoonery. Imagine the research report. “In this study, we implanted devices in n=some mice and at least a couple of ducks to establish a safety profile.”
  • @rachael_levy Rachael Levy on x
    My reporting is based on dozens of Neuralink documents and interviews with more than 20 current and former employees, previously unreported messages, audio recordings, emails, presentations and reports.
  • @rachelmetz @rachelmetz on x
    whoa. “In all, the company has killed about 1,500 animals, including more than 280 sheep, pigs and monkeys, following experiments since 2018, according to records reviewed by Reuters and sources with direct knowledge of the company's animal-testing operations.” https://twitter.co…
  • @rafaelshimunov @rafaelshimunov on x
    The investigation shows such rampant abuse of workers, that testing ethics are completely obliterated, with countless animals put to death because they suffered implants being rushed into them incorrectly, put in the wrong places, missized, and mixed up with conflicting tests.
  • @wallstreetbets @wallstreetbets on x
    Yeah makes sense. Investigate @elonmusk's Neuralink and “look into his links with foreign countries” after buying Twitter. He's a national security threat. Just make sure he keeps rocketing US military shit into space. https://twitter.com/...
  • @rafaelshimunov @rafaelshimunov on x
    20+ Neuralink workers came forward to expose Elon Musk mishandling & abuse, leading to federal investigations with a long lists of his completely stupid and dangerous decisions. “The company has killed about 1,500 animals” thanks to Elon's lack of skill. https://finance.yahoo.com…
  • @unusual_whales @unusual_whales on x
    JUST IN: U.S. law enforcement is investigating Elon Musk's Neuralink, a medical device company, for potential violations of animal-welfare laws as staff raise alarms about the company's animal tests, per Reuters.
  • @reuters @reuters on x
    A Neuralink employee, in a message seen by @Reuters, wrote an angry missive to colleagues about the need to overhaul how Elon Musk's company organizes rushed animal surgeries to prevent ‘hack jobs’ raising risks to animals https://www.reuters.com/... @rachael_levy via @specialrep…
  • @mattbc @mattbc on x
    This is crucial reporting from @rachael_levy of @Reuters on Musk's approach to Neuralink; the picture this paints is of a greedy boss who wants to gamble with the lives of disabled people to further enrich himself. https://www.reuters.com/... https://twitter.com/...
  • @parismarx Paris Marx on x
    Elon Musk is an intensely cruel man who doesn't care about the consequences of his actions. Neuralink has killed at least 1500 animals to keep the belligerent billionaire happy, and employees say the death toll wouldn't be nearly as high if he wasn't driving them so hard. https:/…
  • @avi_bueno Avi Bueno on x
    “In all, the company has killed about 1,500 animals, including more than 280 sheep, pigs and monkeys...” https://www.reuters.com/...
  • @shalingala Shalin Gala on x
    Shut down @neuralink animal tests now! https://twitter.com/...
  • @politicussarah Sarah Reese Jones on x
    “growing employee dissent about Neuralink's animal testing, including complaints that pressure from CEO Musk to accelerate development has resulted in botched experiments...failed tests have had to be repeated, increasing the number of animals being tested + killed” https://twitt…
  • @jasonleopold Jason Leopold on x
    Reuters: Elon Musk's Neuralink, a medical device company, is under federal investigation for potential animal-welfare violations amid internal staff complaints that its animal testing is being rushed, causing needless suffering and deaths. https://www.reuters.com/...
  • @avi_bueno Avi Bueno on x
    Just in case you think this is just the cost of doing business, other companies working towards similar goals as Neuralink have been more productive, while killing fewer animals. This is a choice Musk is making because of his ego and thirst for dominance/power. https://twitter.co…
  • @rafaelshimunov @rafaelshimunov on x
    Elon Musk and Neuralink are caught lying about animal testing, claiming it was used last, to confirm findings (minimizing animal suffering) while its executives are documented to order scrubbing of evidence proving they MAXIMIZE animal suffering by doing exploratory testing. http…