• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechElon Musk

Elon Musk’s Neuralink staff claim his demands to rush brain implant trials led to the needless deaths of 1,500 animals

By
Chloe Taylor
Chloe Taylor
Down Arrow Button Icon
By
Chloe Taylor
Chloe Taylor
Down Arrow Button Icon
December 6, 2022, 9:14 AM ET
Elon Musk pictured in 2015.
Elon Musk’s Neuralink is reportedly under investigation for its treatment of test animals. Scott Olson—Getty Images

Neuralink, one of Elon Musk’s lesser-known business ventures, is facing a federal investigation into its practices after 1,500 animals are said to have been killed in trials of the company’s brain implants.

The startup, which Musk founded in 2016, is building coin-size computer chips designed to be implanted into the human brain, with the aim of helping people with conditions like paralysis or neurological disorders.  

Reuters reported on Monday that an investigation into Neuralink was underway, citing official documents and sources familiar with both the investigation and operations at the company.

The U.S. Department of Agriculture’s Inspector General reportedly opened the probe in recent months at the request of a federal prosecutor, with sources telling Reuters that officials are looking into potential violations of the Animal Welfare Act.

The Animal Welfare Act regulates the treatment of animals in research and testing settings.

Representatives for Neuralink and the Department of Agriculture did not respond to requests for comment.

Staff prompt investigation

The investigation into Neuralink comes amid a slew of internal staff complaints, according to Reuters, with employees alleging the company’s rushed animal testing is causing unnecessary suffering and death.

Those complaints include claims that pressure from Musk—who is the company’s CEO—to speed up the development of Neuralink’s technology has led to substandard experiments. Reuters reported that these failed experiments needed to be repeated, leading to more and more test animals being killed.

Current and former employees told the news agency that Musk was pushing hard for faster progress at Neuralink, telling employees in a February email: “In general, we are simply not moving fast enough. It is driving me nuts!”

That internal memo reportedly came 10 minutes after another message from Musk that included a news article about Swiss scientists whose electrical implant helped a paralyzed man to walk.

The Reuters report builds on interviews Fortune carried out in January with former Neuralink employees, who described “an enterprise marked by internal tensions and erratic management,” as well as accusations from animal rights groups of abuse including “invasive and deadly brain experiments” on monkeys. The company later admitted it had killed eight monkeys during research experiments.

Last year, Neuralink released footage of what it said showed a monkey’s intended hand movements being translated to allow it to play a computer game, and in 2020 the company said it had successfully implanted a chip in the brain of a pig named Gertrude.

What does Neuralink do?

Neuralink describes itself as a “team of exceptionally talented people” who are “creating the future of brain-computer interfaces.”

As well as developing brain implants that could help quadriplegic patients communicate via their thoughts and possibly even regain motor, sensory, or visual function, the company says it is “inventing new technologies that could expand our abilities, our community, and our world.”

Some scientists, however, argue that Musk is overhyping Neuralink’s potential.

Its brain implant is designed to work by connecting thousands of neurons in the brain, recording their activity, and translating the signals directly into an external device. This would theoretically enable people with quadriplegia to control computers and mobile devices with their thoughts.  

Musk has previously described the technology as “a Fitbit in your skull.”

Just last week Musk said he himself would sign up to be a test subject once human testing was given the regulatory go-ahead.

Yup

— Elon Musk (@elonmusk) December 1, 2022

However, the firm’s human trials have already been delayed several times, with Musk originally hoping to begin them in 2020.

Our new weekly Impact Report newsletter will examine how ESG news and trends are shaping the roles and responsibilities of today’s executives—and how they can best navigate those challenges. Subscribe here.

About the Author
By Chloe Taylor
LinkedIn iconTwitter icon
See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
Fortune Secondary Logo
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

LawMedia
DOJ probes Netflix’s power over filmmakers in Warner deal review
By Josh Sisco and BloombergFebruary 21, 2026
1 hour ago
Big TechTech
Microsoft CEO Satya Nadella says Bill Gates told him his big bet on OpenAI would be a flop: ‘Yeah, you’re going to burn this billion dollars’
By Marco Quiroz-GutierrezFebruary 21, 2026
9 hours ago
InnovationNuclear Energy
U.S. military airlifts small nuclear reactor for the first time, flying a minivan-sized microreactor nearly 700 miles on a C-17
By Matthew Daly and The Associated PressFebruary 21, 2026
10 hours ago
taylor
CommentaryMarketing
How fandom became culture’s power center — and a blueprint for Gen Z’s economic influence
By Reid LitmanFebruary 21, 2026
12 hours ago
Startups & VentureEntrepreneurs
‘I have a chip on my shoulder.’ Phoebe Gates wants her $185 million AI startup Phia to succeed with ‘no ties to my privilege or my last name’
By Sydney LakeFebruary 21, 2026
13 hours ago
tanmai
AIdisruption
You have 18 months to figure out your office job, $1 billion CEO says. But it’s not going away
By Nick LichtenbergFebruary 21, 2026
13 hours ago

Most Popular

placeholder alt text
Innovation
The U.S. spent $30 billion to ditch textbooks for laptops and tablets: The result is the first generation less cognitively capable than their parents
By Sasha RogelbergFebruary 21, 2026
15 hours ago
placeholder alt text
Economy
Fed confirms it obeyed U.S. Treasury request for an unusual ‘rate check,’ weakening the dollar against foreign currencies
By Jim EdwardsFebruary 19, 2026
3 days ago
placeholder alt text
Big Tech
Peter Thiel and other tech billionaires are publicly shielding their children from the products that made them rich
By Marco Quiroz-GutierrezFebruary 21, 2026
14 hours ago
placeholder alt text
AI
‘I’m deeply uncomfortable’: Anthropic CEO warns that a cadre of AI leaders, including himself, should not be in charge of the technology’s future
By Sasha RogelbergFebruary 19, 2026
2 days ago
placeholder alt text
Arts & Entertainment
Gen Zers and millennials flock to so-called analog islands 'because so little of their life feels tangible'
By Michael Liedtke and The Associated PressFebruary 20, 2026
1 day ago
placeholder alt text
North America
‘Trump will no longer be able to honor many of the ”deals” he has negotiated’: How the Supreme Court crippled America’s negotiator-in-chief
By Nick LichtenbergFebruary 20, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.