After Years of Cutting Into Monkeys’ Skulls, This Experimenter’s Program Has Collapsed
PETA • Sep 01, 2026
Geoff Ghose, an experimenter at the University of Minnesota, conducted cruel and painful experiments on rhesus macaques for years, involving cutting into their skulls, drilling, and implanting metal devices. After numerous animal welfare violations, federal scrutiny, and university disciplinary action, Ghose was stripped of the ability to work with nonhuman primates. PETA's involvement played a crucial role in bringing an end to the torment inflicted on monkeys in Ghose's laboratory.
Despite facing numerous complications and failures in his experiments, Ghose showed little concern for the well-being of the monkeys. When his animal protocols were suspended, he expressed frustration rather than remorse, painting himself as a victim. While Ghose's experiments have come to an end, other monkeys continue to suffer in similar laboratories at the university, highlighting the ongoing need for action and accountability in animal research.
The University of Minnesota must take further action to address the mistreatment of animals in research settings and ensure that all laboratories uphold proper standards of animal welfare. Through continued advocacy and awareness, the plight of laboratory animals can be brought to light and efforts can be made to protect them from unnecessary harm and suffering.