Ancient bones pulled from the soil of central South America are rewriting what I thought I knew about the peopling of the ...

In Nepal’s Upper Mustang, near the southern edge of the Tibetan Plateau, life unfolds in some of the thinnest air on Earth.

Despite cultural exchange and natural disasters, this lineage—the oldest evidence for which is a collection of 8,500-year-old ...

We are indeed still evolving, though it can be hard to tell because it happens over generations and often involves things you ...

Families in the U.S. and around the world are having fewer children as people make profoundly different decisions about their lives. NPR's series Population Shift: How Smaller Families Are Changing ...

A new study of ancient and modern societies shows that human populations need at least 2.7 children per woman – a much higher fertility rate than previously believed – to reliably avoid long-term ...

For almost 300,000 years, humans were African. But whereas our previous human cousins had already made their way into Eurasia, our own species was more than 200,000 years confined to the mother ...

One of the most elusive animal species may disappear, researchers said. Survival of snow leopard populations could be "precarious" in the future due to the way the elusive mountain cats have evolved, ...

Over 11% of children are estimated to have a diagnosis of ADHD (Danielson et al., 2024), a rate that has doubled over the past 10 years. ADHD is characterized by difficulties with focus, ...

The U.S. population may shrink in 2025 for the first time ever as immigration and birth rates decline. The immigrant population fell by over a million between January and June 2025, Census data shows.

Museum collection of pinned ants from Fiji. This study involved extensive genome sampling from thousands of Fijian ant specimens, highlighting the vital importance of these museum collections as ...

Even in areas relatively undisturbed by human activity, insect populations are on the decline, with climate change as a likely culprit. That's the finding of new research from the University of North ...