Population ecology is the study of how populations — of plants, animals, and other organisms — change over time and space and interact with their environment. Populations are groups of organisms of ...

Researchers formulated a mathematical equation that unifies 12,000 years of human population growth and points to an alarming worst-case scenario. Reading time 3 minutes As the global population rises ...

In 2025, population growth rates fell in 48 states as international migration declined nationwide. The number of states with populations that grew more slowly than their long-term trends tripled to 30 ...

For decades, the US had fewer homes than needed. Now, a slowdown in population growth is unlikely to fix the issue, experts ...