By shining lasers on one of the smallest avian fossils ever discovered, researchers have revealed that the ancient chick was likely born ready to run and maybe even fly—a discovery that offers fresh insights into the nesting behaviors of prehistoric birds. This strategy may have proved handy 127 million years ago in the early Cretaceous…

From the American West to China, Australia to India, some of the world’s most important rivers have been drained dry for agriculture, industry, and drinking water.

See how World Vision’s Water programs are using P&G Purifier of Water packets to bring clean drinking water to rural Africa, Asia and Latin America.PHOTOGRAPHS COURTESY WORLD VISIONRead CaptionPatricia Heaton, World Vision Celebrity Ambassador, holds up clean water after using the P&G Purifier of Water packets.PHOTOGRAPHS COURTESY WORLD VISIONSee how World Vision’s Water programs are…

In social interactions, our faces can become like mirrors, reflecting subtle expressions back at our conversation partner. It might be for validation, or sympathy, but whatever the purpose, facial mimicry is a key part of humanity’s complex social world. We aren’t alone among animals in the use of facial communication, but our degree of finesse…

Last week, the Trump administration rolled back protections for the embattled greater sage grouse, an iconic bird that has become a symbol of the struggle over how to balance extractive land use and preservation in the American West. The new plans allow more oil and gas leasing and drilling opportunities across nearly nine million acres…

See how Save the Children and P&G are bringing clean drinking water to children and families caught in some of the most challenging emergencies across the globe.Photograph by Peter Caton, Courtesy Save the ChildrenRead CaptionSave the Children, in partnership with P&G, is working to bring clean drinking water to children and families across the world.…

The ocean is a continuous body of salt water that covers more than 70 percent of the Earth’s surface. Ocean currents govern the world’s weather and churn a kaleidoscope of life. Humans depend on these teeming waters for comfort and survival, but global warming and overfishing threaten Earth’s largest habitat. Geographers divide the ocean into…

A wealth of ancient remains found by chance on the banks of a river in China are some of the most astoundingly preserved fossils now known on Earth, researchers report today in the journal Science. The 518-million-year-old site, called Qingjiang, joins just a few places around the world where fossil preservation is so extraordinary, it…

This week I was thrilled to see so many different views of the world right here from my desk in Washington, D.C.—scenes that I may never get to see firsthand. I’m always humbled by the Your Shot photo community sharing the world with us through their eyes. When I first saw Rachel Mataira’s photograph of…

A version of this article originally appeared in the National Geographic book 100 Parks, 5000 Ideas. There’s much ado about altitude at this remarkable park in the Colorado Rockies. In addition to having the highest average elevation of any other U.S. national park, Rocky Mountain boasts 70 peaks rising to more than 12,000 feet (3,657.6…