Naked mole rats not cancer-free after all

Before last week, there were no known cases of cancer in naked mole rats, a feature that was unique to the long-lived species. However, a new report documents cases in two of the rats, one living at the Brookfield Zoo in Illinois and the other kept at the National Zoo in Washington, D.C. The cases are discussed in Veterinary Pathology. The Brookfield Zoo rat has an adenocarcinoma that may not be a threat to his health. The rat from the National Zoo, euthanized due to weight loss and other problems, had a gastric neuroendocrine carcinoma. The Scientist online (2/8)

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