NIH to Cease Use of Chimpanzees in Research

More than two years after the National Institutes of Health said it would sharply reduce the role of chimpanzees in its research efforts, the biomedical research agency went further Wednesday, announcing that it would close its remaining colony of 50 chimps and end federal research involving the primates. The statement from Director Francis S. Collins said that studies involving other nonhuman primates would continue to be "valued, supported and conducted by the NIH."