In human demography and population studies, “population (human)” refers to the total set of individuals of Homo sapiens occupying a defined spatial, temporal, or social frame, serving as the primary unit of analysis for topics such as fertility, mortality, migration, and population structure. Research addresses population size, age–sex composition, density, spatial distribution, and dynamic processes governed by demographic rates and transitions. Human populations are modeled using formal demographic methods (e.g., life tables, stable and multistate population models) and are central to analyses of population growth, demographic transitions, population health, urbanization, and the interaction between human numbers and economic, environmental, and social systems.
Wolves roaming the Mongolian steppes cover more than 7,000 kilometers a year. The Arctic tern flies from pole to pole in its annual migration. Compared to these long-distance travelers of land, sea and sky, humans might seem ...
Plants & Animals
Oct 27, 2025
0
2
For countless millions across the globe, commuting to work or school is an everyday routine. But during a pandemic, the practice can contribute enormously to the spread of infectious disease, a fact that many traditional ...
General Physics
Oct 14, 2025
0
22
Around the world, women on average live longer than men. This striking pattern holds true across nearly all countries and historical time periods. Although the gap between the sexes has narrowed in some countries due to medical ...
Plants & Animals
Oct 1, 2025
0
167
Human settlements around the world are moving inland and relocating away from coastlines as sea levels rise and coastal hazards grow more severe, but a new international study shows the poorest regions are being forced to ...
Earth Sciences
Sep 24, 2025
1
111
Tracking human behavioral patterns in cities can be used to determine urban delineations and urban land use, which has the potential to improve urban planning.
Environment
Sep 4, 2025
0
0
The long-running debate over the ideal city size has an answer, with a new study pinpointing the "magic number" of residents where sustainability and livability peak. The paper is published in the journal npj Urban Sustainability.
Environment
Aug 28, 2025
0
37
Researchers at the University of California, Irvine and other institutions have spotted a contradiction in worldwide wildfire trends: Despite a 26% decline in total burned area from 2002 to 2021, the number of people exposed ...
Earth Sciences
Aug 21, 2025
0
0
A new genomic study reveals how human populations adapted, survived, and diversified in the Himalayas, one of the most extreme and challenging environments on Earth.
Evolution
Jul 10, 2025
0
85
In Europe, mountain areas account for about 36% of the total territory and are home to 16% of the population, but they are crucial for the continent as a whole. The availability of basic commodities, like water, depends on ...
Environment
Jun 18, 2025
0
7
Today, all non-Africans are known to have descended from a small group of people that ventured into Eurasia around 50,000 years ago. However, fossil evidence shows that there were numerous failed dispersals before this time ...
Evolution
Jun 18, 2025
0
145
