Family size around the world is dropping. That choice by couples is triggering a population shift that's sending shock waves ...

Birthrates in the United States have reached an all-time low. Many fear that the decline could lead to stalling in economic development and labor shortages, with Elon Musk describing it as "the ...

The United States could see its population shrink for the first time ever in 2025 as immigration numbers and birth rates have plummeted, according to a report. Net international migration to the US in ...

Human populations need at least 2.7 children per woman—a much higher fertility rate than previously believed—to reliably avoid long-term extinction, according to a new study published in the ...