United States

The United States of America, commonly known as the United States or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, 326 Indian reservations, and some minor possessions. At 3.8 million square miles, it is the world's third- or fourth-largest country by geographic area. The United States shares significant land borders with Canada to the north and Mexico to the south as well as limited maritime borders with the Bahamas, Cuba, and Russia. With a population of more than 331 million people, it is the third most populous country in the world. The national capital is Washington, D.C., and the most populous city is New York City. Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago, and European colonization began in the 16th century. The United States emerged from the thirteen British colonies established along the East Coast.

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'Monstrous births' and the making of race in the nineteenth-century United States

New study uses gene prediction tool to select premium grade Angus herds in Missouri and across the United States

These are the oldest stone tools ever found in the United States

Four things to know about malaria cases in the United States

Young adults ages 19 to 30 nearly doubled (from 3.4% to 6.6%) their past 12-month use of non-LSD hallucinogens in the United States from 2018 to 2021, according to a new study

China overtakes United States on contribution to research in Nature Index

New Surgeon General Advisory Raises Alarm about the Devastating Impact of the Epidemic of Loneliness and Isolation in the United States

Alarming – Rates of Teen Suicide Continue To Surge in the United States

New Species of Siren Discovered in the United States

The Northern Lights Were Seen Farther South in the United States

A giant blob of seaweed twice the width of the continental United States is headed for the shores of Florida and other coastlines throughout the Gulf of Mexico

A new study looking at data from a federally funded survey found that the prevalence of medical cannabis use more than doubled in the United States between 2013 and 2020, driven largely by state-level legalization.

Unsecured handguns account for the majority of firearm suicide deaths in the United States, study finds

American culture: Traditions and customs of the United States

Parental breakup and children's outcomes in the United States: Children of divorce were found to exhibit higher prevalence of several illnesses during adolescence and young adulthood than children of continuously married families.

Feeling the Heat in the Extremes: Where To Expect Heat Waves in the United States in the Future

More wolves, beavers needed as part of improving western United States habitats

Disparities in United States COVID-19 vaccine distribution

Four Ways the United States Can Still Fight Climate Change

Researchers find that less than 7 percent of adults in the united states have optimal heart health.