I am not sure of the source of this post (newscientist - they haven't mentioned any references) but I found a paper describing the new animal model using naked mole rat in the area of aging. The paper also talks about highly reduced incidence/severity of cancer.
"Researchers have found that subterranean mole rats have developed cellular mechanisms in order to survive the low levels of oxygen in their underground habitat -- mechanisms that are similar to those used by tumors to survive and progress in humans."
