We live in an era of mass migration. According to the United Nations’ World Migration Report 2022, there were 281 million international migrants in 2020, equaling 3.6 percent of the global population.

As millions of monarch butterflies make their way down the east coast to Mexico for the winter, butterfly scientists want people in their flight path to report monarch sightings. Doing so can help ...

Here are the top counties for in-migration between 2019 and 2020. Expand to read more Davel5957 Listen to this article 4 min From new trends in the soaring Sun Belt to heavy losses for some heavy ...

Summer flounder that once amassed in North Carolina have gradually shifted about 140 miles to New Jersey—one facet of the northward migration of fish species that is upending traditional fishing ...

A groundbreaking bioarchaeological study from the Universities of Edinburgh and Cambridge has shattered long-held assumptions about medieval migration patterns into England. Rather than arriving in ...

Researchers in the South want people to report Monarch butterfly sightings this winter as more butterflies seem to skip the long migration to breeding grounds in Mexico. Millions of monarch ...