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Ivy League universities have long touted themselves as elite institutions with high research standards, but there’s one big problem: They all subject animals to gruesome, deadly, and pointless experiments.

A Columbia experimenter surgically implanted metal pipes into female monkeys’ skulls to induce stress—supposedly to study stress and the menstrual cycle.
Still, for decades, these universities have loudly claimed their commitment to “replacing, reducing, and refining” the use of animals in experiments, something known as the 3Rs principle, while quietly brain-damaging pigs, punching holes in rabbits’ jaws, and more.
PETA challenges all eight of the U.S.’s Ivy Leagues: Prove your commitment, because there seems to be no evidence that it is real.
We’re demanding they share their plan.
The Ivy Leagues collectively gobbled up more than $1 BILLION in funding from the National Institutes of Health for experiments on animals in 2024 alone. Taxpayers have the right to know if these schools have been truthful about their 3Rs pledge or if that promise is false. Transparency matters at private institutions, just as it does at public universities.
The 3Rs refer to reducing animal use, replacing animals with animal-free methods, and refining experiments on animals so they are less cruel. The framework was first published in 1959 and was enthusiastically embraced by animal experimenters worldwide, at least in theory.
But it looks like universities are using their supposed commitment to the 3Rs as a smokescreen to placate the public while they continue to harm and kill monkeys, pigs, rabbits, rats, mice, and others in their laboratories. Here are just a few examples:
- Cornell University experimenters gave week-old female rats boob jobs by cutting open their backs. The rats suffered miniature human breast implants that moved, rotated, or flipped for 12 weeks before experimenters killed and dissected them. Others forced mice to binge on alcohol for months, while limiting their access to water, and subjected them to the cruel tail suspension and forced swim tests.
- Yale University experimenters irradiated pregnant monkeys and their developing babies, separated the two after birth, and subjected the babies to years of tests before killing them and cutting out their brains. Others caused sepsis in mice by cutting open their stomachs, pulling out their intestines, and poking holes to release bacteria—causing severe infection and inflammation—before killing and cutting them open.
- Columbia University experimenters cut open pigs, removed their organs, and transplanted them into other pigs and baboons. The pigs were killed immediately after the Frankensteinian surgery, while the baboons suffered blood clots and organ rejection before being killed. Others cut rabbits’ cheekbones and punched holes into their jaws before killing and dissecting them.