A new study finds North American bird populations keep dropping, and that decline is speeding up for many species.

Learn more about why the human population seems to be in decline and what that could mean for the future.

Though previous research has shown that bird populations are declining across North America, a new study is the first to show that the pace of loss has picked up speed since the mid-1980s in three ...

In some Montana hunting districts, up to one-third of animals have contracted chronic wasting disease, the fatal, neurodegenerative disorder that’s driving down deer and elk populations in other ...

Explore 5 nations facing rapid population decline and what life could look like with fewer children and families. Learn how ...

Add Yahoo as a preferred source to see more of our stories on Google. New Mexico was one of five states in the U.S. that lost population last year as the U.S. growth rate dramatically slowed. While ...

Net international migration dropped sharply amid President Trump's immigration crackdown, new Census data shows.

A declining population can wreak havoc on a country whose various social programs are based on growing numbers of citizens. For instance, the Social Security system in the U.S., and similar ones in ...

According to a new study by the Museo Nacional de Ciencias Naturales (MNCN-CSIC) and the National University of Colombia, chronic ocean warming is driving a nearly 20% annual decline in fish biomass.

An expert is now urging the country to build on the “purple” and “silver” economies as Jamaica’s demographic trajectory is ...

In Wisconsin and nationwide, population growth slowed in 2025 amid a significant decline in international migration.