These ancient trees persisted for nearly 200 million years until they all but vanished. Now they line city streets.

In the early fourth century A.D., Rome was notorious for persecuting Christians. Yet the night before battle, Constantine ...

Scientists are discovering that the oral microbiome—home to hundreds of species of bacteria and fungi—may help predict ...

As teens spend less time with their friends in person, scientists are beginning to uncover how isolation may affect the developing “social brain." Here’s what we know—and when parents should be ...

Scientists have discovered that gut-born bacteria may hold the secret for treatments of everything from IBD to Parkinson’s ...

Customs officers fight against drug smuggling at airports, air cargo inspection facilities and the international mail center.

Genetics, the microbiome, and low screening rates may be factors in the increase, experts say. Here are risk factors for the ...

Egyptian geese are aggressively territorial. During mating, they are monogamous, making it likely the pair fighting the ...

Beneath the cliffs of western Colorado, a billion years of geologic history unfolds—and a century-old dream of accessibility still shapes the land.

Nearly 60 square miles burned and 100,000 people were displaced. Now many are holding on to what they found—in their homes ...

Learn the untold stories of human history and the archaeological discoveries that reveal our ancient past. Plus, explore the lived experiences and traditions of diverse cultures and identities. What ...

Low levels of vitamin D seem to raise your risk of heart attack but scientists are still figuring out why—and whether ...