The fossils, which predominantly consisted of leg bones, date back to roughly 230 million years ago during the Triassic Period ... rex may have evolved in North America after all, scientists ...

More than 22% of native pollinators in North America are at an elevated risk of extinction, the research found. Researchers blame habitat loss, pesticide use and climate change for the problem.

The busiest port in North America is actually two ports. Nearly a third of everything the U.S. imports or exports in containers over water comes through the ports of Los Angeles and Long Beach.