https://www.peta.org/issues/animals-used-for-experimentation/silver-spring-monkeys/
The Silver Spring Monkeys: The Case That Launched PETA | PETA
Sep 23, 2025 - In 1981, one of PETA's founders set out to gain some experience in a lab and began working undercover at the Institute for Behavioral Research.
silver spring monkeyscaselaunchedpeta