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Ken & Rosie: Inside chimpanzee research lab

09:12

Ken and Rosie are 30-year-old chimpanzees that were born in research labs and have spent most of their lives in labs dedicated to finding cures for human diseases. The use of chimpanzees in invasive medical research has long been debated. Primatologists like Jane Goodall argue against the use of chimpanzees in medical research, while some researchers say testing is crucial and has saved human lives. Lisa Myers reports.