The Ecuadorian group carries a mutated gene that stunts their growth, but may prevent them from getting cancer, scientists say. Read the full story.
A photo of the group taken in 1988, about the time the study began. Read the full story.
Cell biologist Valter Longo of the University of Southern California, which led the study 23-year study. Read the full story.
Group lives in a remote Ecuador village on the edge of the Andes. Read full Story here.