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.

"The Naked Mole-Rat: A New Long-Living Model for Human Aging Research" http://biomed.gerontologyjournals.org/cgi/content/full/60/11...