At Covance, most of the monkeys are used in short-term terminal studies. Covance is a contractor that conducts drug and product toxicity experiments for pharmaceutical, chemical, and consumer product manufacturers. Their clients and the details of what they do are highly guarded secrets.

On two occasions, undercover investigators have videotaped the daily activities inside Covance monkey labs. One was in Virginia and the other was in Germany. These videos are available on the Internet.

Most of the monkeys used by Covance are probably killed within a few months of their arrival.

At UW-Madison, at both the primate center and at the Harlow lab, some of the monkeys are killed shortly after being experimented on, but many are used for years on end.

Unlike Covance, some (sometimes many) details of the experiments at the university are available to the public. One way to find out about these experiments is to use the National Institutes of Health's on-line search engine: RePORTER.