One-in-five U.S. adults ages 50 and older have never had children, according to Pew Research Center analysis of government data. 5 Not having children is more common among adults in their 50s and 60s ...

Muslims are the fastest-growing faith group, followed by the religiously unaffiliated, according to a new Pew Research Center study measuring the evolution of the global religious population between ...

Global fertility rates have been falling for decades and are reaching historically low levels. While the human population now exceeds 8 billion and may top 10 billion by 2050, the momentum of growth ...

A new Pew Research Center study measuring the evolution of the global religious population shows Muslims make up the fastest-growing faith group, followed by the religiously unaffiliated. Though it ...