Animal Lawyer • Artist • Strategy @nonhumanrights ⚖ Ask me about nonhuman legal status & animal standing. Statements made here are mine alone.

Bay Area, California
Joined May 2009
Christopher Berry retweeted
The baby-donkey-executing cop in Georgia *actually* invoked qualified immunity to get the lawsuit against him dismissed. Which poses the question, what facts would be sufficiently similar to defeat that defense: Baby mule? Baby pony? Baby *miniature* pony? Any equine of any age?
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Christopher Berry retweeted
I guess I'm not such an outlier in favoring a liability-based approach to mitigating catastrophic AI risk. Superforecasters expect a US-only strict liability regime to be as effective as global pre-release approval and (much!) more effective than a US-China coordinated slowdown.
Woah! According to @Research_FRI's Leap panelists, a US-only strict liability regime for AI way outperforms a US-only AI slowdown or pre-release authorization regime and is competitive with a globally coordinated version of those policies!
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Christopher Berry retweeted
Kind if crazy how many people I'm seeing recently arguing that Maddox was clearly on the right in "Measure of a Man." Lieutenant Commander Data can't be a person with rights, for he is beep boop computer.
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Christopher Berry retweeted
Catching up on my Blackstone, Blackstonian scholarship, and case law. Seems like the "sole and despotic dominion" bit has exploded in U.S. case law since Cedar Point but was essentially never cited before. I wonder about English and Commonwealth cites since Schorr's 2008 paper
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Christopher Berry retweeted
Replying to @mattyglesias
Products liability is indeed inadequate, but liability and insurance can and should play a central role in mitigating AI risk: papers.ssrn.com/sol3/papers.…
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Christopher Berry retweeted
Wow, this is a brilliant game - and so disturbing. If you were born again as one of the 102 billion animals that come into the world each year, how would your life change? With real odds. Good luck not ending up as a broiler chicken... --> spawn-again.vercel.app
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Christopher Berry retweeted
Below, @zach_pohlman asks what makes AI-written legal scholarship problematic, if anything. In my view, the explanation goes to what makes law so fundamentally different from engineering: It's human-made. Law is a cultural practice, not a science. 🧵 xitter.cf/zach_pohlman/status/20…
Genuine question. Why are AI-written law review articles objectionable? Say the author inputs the idea, research, detailed outline, etc., but AI drafts it. Now say the author drafts the same article the old-fashioned way. Why should we prefer (b) over (a)?
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Christopher Berry retweeted
Lawyers often treat tone as a matter of formality. Should this sound more polished? More restrained? More aggressive? The real question is simpler: what does this reader need from me, and how can I make it easier for that reader to get it? 🧵
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Today, Ridglan Farms must relinquish its license to breed and sell dogs for experimentation. This victory is due to the combined efforts of so many. Here’s how it happened... A thread 1/
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"Chickens need good lawyers more than perhaps any group in America!" - @NickKristof
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Christopher Berry retweeted
In my 25+ years advocating for better treatment of farm animals, I’ve never seen so many thought leaders and elected officials from both right and left unite to defeat an anti-animal bill. Some things are bigger than political tribalism, and basic decency toward animals is one of them. Here's a small sample of those speaking out against including SOB in the farm bill. 🧵
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Christopher Berry retweeted
Claw Enforcement: California joins other states in restricting cat declawing. ow.ly/9uYF50YBLVY #InterAlia #animallaw @annaStolleyP
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World-famous Happy the elephant was euthanized by the Bronx Zoo this week after half a century in confinement. Here’s how Happy made animal law history—and why her death matters. Join me in demanding that the Bronx Zoo release its remaining elephant, Patty, to an appropriate elephant sanctuary 🐘 Shout out to @NonhumanRights for arguing Happy’s historic case.
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Christopher Berry retweeted
Yesterday, I woke up to the devastating news that Happy the Elephant was euthanized by the Bronx Zoo. She was 55 years old and lived almost her entire life in a state of misery. Seven years ago, thanks to the platform many of you have given me, I was able to bring international attention to Happy’s plight via this thread. And as you can see in the quote tweets and replies, I continued to do that, with your help, for years afterward. The @BronxZoo and @TheWCS should never be forgiven for what they did to Happy: keeping her captive, isolating her for years, and denying her the chance to spend her final years in a sanctuary. @JimBreheny, the now-former director of the Bronx Zoo (he retired just a few months ago), should hang his head in shame and be haunted by what he subjected her to. Keeping her isolated for many years as they did — despite offers from sanctuaries to take her in — meant they subjected her to years of psychological torture unnecessarily, after she had already had a very difficult life. And they did all of this for money. Elephants are often among the most sought-after attractions at zoos. The Bronx Zoo made Happy suffer because she filled its coffers. It is disgraceful. The Association of Zoos and Aquariums (@zoos_aquariums ) is complicit in this tragedy, a lot more on them later. Happy’s tragic life was the predictable outcome of an organization that has spent decades defending the confinement of animals whose emotional, social, and cognitive needs far exceed what ANY zoo can provide. I am largely against zoos for many species, but it is scientifically indefensible and biologically impossible to meet the needs of an elephant in a zoo. Every elephant expert who isn’t complicit in the zoo cartel system agrees with that assessment. A daughter of Thailand, Happy was born in 1971. When she was still in need of her mother’s care, Happy was abducted and taken to the United States, where she was held captive in Texas, Florida, and eventually New York. In the United States, Happy gave rides at one point to human beings. In order to make an elephant rideable, you must subject them to unspeakable torture in order to break their spirit. After the deaths of the elephants closest to her, Happy spent nearly 20 years living largely in isolation. For two decades, the Bronx Zoo and the Wildlife Conservation Society were warned over and over again by advocates, sanctuaries, and elephant experts about the psychological toll this would take on her. They ignored them. They were, in fact, defiant in their response to some of the world’s leading experts on elephants. In 2005, Happy became the first elephant in history to pass the mirror self-recognition test, a major scientific achievement that demonstrated self-awareness. An animal’s ability to recognize itself in a mirror is extraordinarily rare and has been documented in only a handful of species. The discovery helped further establish what elephant researchers had long understood: that elephants are incredibly sophisticated beings who live complex social and emotional lives, much like humans and other non-human primates. In explaining why they wouldn’t release her to a sanctuary, The Bronx Zoo said that she had difficulty living with other elephants. That may have been true, but the Zoo never seemed to wonder how she had gotten to that point. In the wild, there’s no such thing as a female elephant that has difficulty living with other elephants. If a female elephant misbehaves, she is quickly put in her place by her grandmother, mother, and aunts. Elephant families are among the strongest social structures in the animal kingdom. Females are born into them, raised in them, and spend their lives within them. If Happy could indeed not live with other elephants that was just evidence of how living isolated in a zoo destroys an elephant’s ability to form and maintain social bonds. And even if she did have difficulty sharing space with other elephants, accredited sanctuaries could have kept her alone, but at least she would have had acres and acres of land to roam and explore. Her psychological state would have no doubt shifted, and she would have been under much less distress. That’s because elephant sanctuaries that have elephants that don’t get along with others still give elephants the chance to see, smell, and hear other elephants. Keeping any elephant alone, isolated, and in such a small space is psychological torture — there’s not a single elephant expert not funded by a zoo or zoological organization who doesn’t believe this. Having spent a lot of time around elephants and having had the great honor of knowing some of the world’s leading elephant experts, I am always in awe of how much elephants are like us emotionally. Elephants form deep and enduring social bonds, live within complex family networks, mourn the loss of loved ones, and comfort one another in times of distress. Elephants also possess extraordinary memories (they really do remember everything) that shape their relationships throughout their lives. Whenever an elephant matriarch in the wild dies at an old age, I often get emotional thinking of the knowledge and memories she passes away with. A matriarch gains her incredible wisdom from her ancestors, passed down from her grandmother and mother, about the best places to find water and food, and the knowledge of how to raise young, including her own grandchildren. When I think of the memories Happy died with, I am overcome with grief. Instead of memories of jungles and waterways and elephant calves, she died with haunting memories of the torture, captivity, and isolation she endured. An elephant’s incredible memory helps them survive hardship. For example, a matriarch knows that she can take her family to an out-of-the-way water hole because her grandmother took her there, and her grandmother’s grandmother took her there. ere. For Happy, that same gift of memory meant carrying decades of loss, deprivation, and loneliness. What should have been one of her greatest strengths became another source of suffering. Few animals are as socially and emotionally dependent on one another as elephants. Human loneliness can be painful. We know, based on years of research and studies, that it can also shorten a human being’s lifespan. But forced solitary captivity for an elephant is deprivation beyond what most human beings will experience (with the exception of those who are incarcerated or held against their own will). Elephants are built to live through touch, sound, smell, movement, family bonds, and constant social awareness. Taking that away is psychologically damaging in a way that is deeper than the usual human comparison captures. A human being who is isolated can at least rationalize it. They, unless they are incarcerated or held against their own will, have freedom of movement. They can try to change their circumstances. A captive elephant forced into isolation cannot do that in the same way. It does not understand the reason for its isolation. It cannot choose to leave. It cannot call someone or reframe the experience as “solitude.” The Bronx Zoo turned its back on Happy and her supporters even though easy options were presented to it. As I mentioned earlier, accredited sanctuaries offered to take Happy in. My friend @WhitneyCummings even offered to cover the cost of Happy’s transport to one of those sanctuaries (this would have cost her hundreds of thousands of dollars). Many people helped to elevate my message about Happy when I shard it. Thank you to my pals, including Chrissy Teigen, Josh Gad, @piersmorgan , @richardmarx , among others, who used their platforms to bring more attention to Happy. Thank you to former NYC Council Speaker Corey Johnson , who took the time to learn about Happy’s plight when he was in office and issued a strong statement calling on the zoo to send her to a sanctuary. Other politicians ignored the global pleas to help her. Thank you to my friend Joyce Poole — who knows more about elephant behavior than anyone else living and has played a major role in saving the African elephant. Joyce’s organization, @elephantvoices , does critical work advancing our understanding of elephant behavior, communication, intelligence, and social lives. It was Joyce’s years of research that led us to understand elephants in the way we do now (she’s often called the Jane Goodall for elephants for good reason) — that research helped powerful lawmakers and officials to understand that elephants are so much like us and thus led to an international ban on ivory. Joyce’s expertise is unparalleled, and she used the respect she’s earned, and her years of expertise, to file affidavits on Happy’s behalf and to speak to influential officials to push them to advocate for Happy. And thank you most of all to my friends at the @NonhumanRights project for putting so much effort, time, and heart into fighting for Happy. Non-human animals deserve rights too. Happy’s right to determine her future was stolen from her when she was snatched in the jungles of Thailand and thrown onto a plane to disappear into an abyss of captivity, torture, and isolation. And even when the world rallied by her side, her captors, who claim to care about the welfare of animals and make their determinations based on science, thumbed their noses at expert after expert who pleaded for Happy to be released to a sanctuary. When a female elephant dies, she is often surrounded by her daughters, her young sons, her nieces and young nephews, among other relatives. Happy was denied something that should have been hers by birth: the chance to die surrounded by those who loved her. Had Happy remained in Thailand and lived in the wild, she could have had around six children and perhaps as many as 10 grandchildren, with even the possibility of great-grandchildren. Instead, Happy was euthanized in a cold zoo that held her prisoner for years in order to extract as much money as they could from her.
1. Elephants are just like us. They celebrate births & mourn deaths. And they grow depressed when they're isolated. They require a companion or herd in order to be happy Meet Happy the 🐘 Happy is 48 & she lives at the @BronxZoo For the past 13 years, Happy has lived all alone
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Christopher Berry retweeted
Today, we remember a legend. On this day in history, Harambe would have celebrated another birthday. An icon that became part of internet history, American culture, and an entire generation’s timeline. Tomorrow marks 10 years since we lost him. Ten years since the moment the world stopped scrolling and collectively mourned something bigger than a meme. He became a symbol of loyalty, strength, chaos, unity, and the strange beauty of the internet bringing millions of people together for one cause: never forgetting Harambe. Everyone remembers where they were when they heard the news. And somehow, a decade later, his legacy still lives on. Gone, but never forgotten. Rest easy to a true patriot. 🕊️🇺🇸 May 27, 1999 — May 28, 2016 Forever in our hearts.
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Christopher Berry retweeted
We cannot relent until every single dog is out of this facility and into a home
Just got off a productive call with the USDA where I learned Ridglan Farms has been told to surrender their federal breeding license by July 1 or the USDA would take official action. They also gave us an official answer on how many dogs are left at Ridglan: 650. Even though Ridglan is losing their state (and potentially federal) licenses, it doesn't stop the on-site research they're conducting. I'll continue to work with the USDA and NIH to shut down the entire facility and find homes for the 650 remaining dogs!
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Christopher Berry retweeted
A legal document is never actually "finalized." It just reaches a level of perfection called Draft_v14_FINAL_actualfinal_revised.docx.
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Christopher Berry retweeted
This was one of the hardest stories I've written. When people fail to spay/neuter, or buy a dog instead of adopting, the animals pay the price — and so do shelter workers and animal control officers. Performing euthanasia, responding to cruelty cases, & more, is a huge burden.
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The NYU Center for Mind, Ethics, and Policy is now on X! We examine the nature and value of nonhuman minds, with a focus on animals and AIs. Follow @nonhumanminds for updates on our research, events, and opportunities, along with news from the fields of animal and AI welfare.
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