Key points from article :
Researchers examined age-specific mortality estimates for a widely diverse group of 101 species.
On average, females live 18.6% longer than males from the same species.
Much larger than the difference between men and women of around 8%.
9 out of 10 people who live to be 110 years old are female.
Differences in mammals due to a combination of sex-specific genetics and local environmental factors.
Where natural resources were consistently available there was little difference in lifespan.
Study led by University of Lyon published in Proceedings of the National Academy of Sciences.
