Since taking office, President Donald Trump has made clear he is manifestly determined to make America even more dominant in the Western Hemisphere.

Burn marks left on trees show that fires occurred frequently in North America from 1750 to 1880, but they tended to be less severe than modern fires and may have even been beneficial to forests ...

Colorado State University researchers have identified priority areas for the conservation of the black-tailed prairie dog in the United States, extending from Montana to Texas and New Mexico to ...

Researchers have identified priority areas for conserving the black-tailed prairie dog in the United States. Protecting these regions will also benefit North America's Central Grasslands and the many ...

Google confirmed it would change the name of the Gulf of Mexico in Google Maps, but only for U.S. users. Others will see both names.

Google noted that a location's name may appear differently depending on where Maps users are.

What was lost is now found. Researchers believe they might have cracked the case of the lost colony of Roanoke — a great ...