Recent discoveries about an alvarezsaur called Manipulonyx have drawn renewed attention to this group of bird-like, clawed creatures and the mysteries around their anatomy and behavior

The scholar's picks include "Turn: Washington’s Spies," "John Adams" and "Franklin"

Journey around the nation with this interactive map, divided by region or category, and discover American history in a way you’ve never seen before

Journey around the nation with this interactive map, divided by region or category, and discover American history in a way you’ve never seen before

Once the whaling capital of the world, New Bedford remembers Herman Melville’s literary masterpiece with an annual reading marathon

Alexander the Great conquered the region around 329 B.C.E., leaving behind Greek and Macedonian settlers who intermarried with locals. Their descendants eventually formed new kingdoms whose legacies continue to be debated today

Recent counts of the Wadden Sea’s adult harbor seal population have revealed a surprising trend of decline, prompting a consortium of researchers to investigate whether the animals are dying off, relocating or experiencing something else altogether

Rove beetles cloak themselves in ant pheromones to sneak into the insects’ nests for protection. But in an odd catch-22, that makes them forever reliant on their hosts

You don’t have to be an Olympian to enjoy these snowy activities

They race, they spin, they shoot. Meet the organisms for which physical prowess is more than sport—it’s a matter of life and death

From Abraham Lincoln's patent to James A. Garfield's geometry proof, learn how these 19th- and 20th-century commanders in chief shaped their legacies beyond politics

Wild fringe-lipped bats spend just one-tenth of the night in flight, but they can precisely snatch a calling frog and nab prey that rivals their own size

More than 3,000 artworks from national museums were stowed in chateaus in the Lot—about 350 miles south of Paris

Researchers are uncovering the evolutionary steps that set the stage for dinosaurs to rule the planet

Warming temperatures are wreaking havoc at elevation, upending the Winter Olympics and the tourism industry and imperiling communities

These oft-anonymous messages took aim at pretentious poets, unhelpful salespeople, suffragists and secessionists alike

Since their domestication, horses have changed the course of human history. It’s no wonder the Chinese zodiac associates them with prosperity and success

See Smithsonian magazine contest photos that honor U.S. presidents and their monuments