Christopher JoyceChristopher Joyce is a correspondent on the science desk at NPR. His stories can be heard on all of NPR's news programs, including NPR's Morning Edition, All Things Considered, and Weekend Edition.
Researchers found numerous ring-like structures inside France's Bruniquel Cave. They believe they were built by Neanderthals some 176,000 years ago.
Etienne FABRE - SSAC
A view from the Shark Valley Visitors Center in Everglades National Park. Much of the freshwater that used to replenish South Florida's saw grass prairie has been diverted to agriculture, researchers say.
People in Boston enjoyed a late winter heat wave this past March. In much of the U.S., climate change is causing winters to warm faster than summers.
Suzanne Kreiter/Boston Globe via Getty Images
For 15 years, biologists in single-person, ultralight aircraft would each lead an experimental flock of young whooping cranes from Wisconsin to a winter home in Florida. But not anymore.
The half-naked hatchetfish,shown here munching on a shrimp, is just one of many billions of mesopelagic ocean fish that migrate up and down the water column each day to hunt food and avoid predators.
New York City called a travel ban on vehicles in Times Square and elsewhere during last weekend's storm, which broke snowfall records all along the Mid-Atlantic coast.
Yana Paskova/Getty Images
Part of the main street in Hilo, Hawaii, was flattened by a tsunami in April 1946. That big wave was triggered by a quake near the Aleutian Islands, where the edges of two tectonic plates continue to collide.