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Seven baby monkeys in a lab at the University of California, Davis, died after being accidentally poisoned by a dye used in research, The Guardian reported last weekend (June 16). The deaths, which occurred after the monkeys’ mothers were marked for identification with Nyanzol-D that was subsequently transferred to their infants, represent the latest in a string of ethical scandals for the university’s primate research labs.
Researchers discovered two of the macaques with dye in their mouths, exhibiting “generalized weakness and respiratory distress [and] severe edema and swelling of the larynx and tongue,” according to documents seen by The Guardian that were sent last year by UC Davis to federal authorities. The five others, which also showed some amount of dye on their skin or in their mouths, were “either found dead or euthanized upon arrival at the hospital.”
A spokesman for the university tells the ...