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 ...

President Donald Trump's immigration crackdown has contributed to a year-to-year drop in the U.S. growth rate as the nation's ...

Birth rates have dropped faster than life expectancy has increased, causing slower population growth around the world. Forecasts from the United Nations predict that world population will actually ...

Immigration in 2024 drove U.S. population growth to its fastest rate in 23 years as the nation surpassed 340 million residents, the U.S. Census Bureau said Thursday. The 1% growth rate this year was ...

Once a runaway train, Canada’s immigration-driven population growth has come to a grinding halt. For the second straight quarter, the country’s population was little changed, compared with a quarterly ...

The U.S. population isn't growing the way it used to. Congressional forecasters have lowered their projection of population growth over the next decade by 7 million people, in response to the Trump ...

Sometimes numbers don’t tell the whole story. The latest state population update might qualify as a case in point. According to the latest U.S. Census Bureau figures, most Massachusetts communities ...