For hundreds of years, Native Americans in the southwestern United States had a prolonged baby boom — which would average out to each woman giving birth to more than six children, a new study finds. That baby streak, however, ended a little before the Spanish colonized the Americas.
31 mars 2014 : "The no baby boom", article d'Anne Kingston dans Maclean's sur les femmes sans enfant qui osent parler de ce sujet tabou: femmesansenfant.com, gateway-women.com, lifewithoutbaby.com, savvyauntie.com
What Caused the Baby Boom?
What Caused the Baby Boom?: The Baby Boomers can be seen as a wide spot in this age-sex pyramid for the U.S.