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 excavated the remains of five creatures who lived 1.8 million years ago, including this adult male skull. The excavation site, in Georgia in the former Soviet Union, was home to a remarkable cache of bones.
Courtesy of Georgian National Museum
A Thai medic checks bodies for forensic identity in Phang Nga province in southern of Thailand on Jan. 11, 2005. Thousands of people were killed in Thailand after a massive tsunami struck on Dec. 26, 2004.
Pornchai Kittiwongsakul/AFP/Getty Images
This young whooping crane is on its first fall migration, guided by an Operation Migration ultralight aircraft. Each whooper in this population wears an identification band, and many carry tracking devices that record their movements in detail.
Joe Duff/Operation Migration USA Inc.
Kesennuma, in the Tohoku region of Japan, was devastated in a March 11, 2011, earthquake and tsunami. A researcher studying recent mega-quakes says this one, centered some 300 miles from Tokyo, could actually mean an increased risk of a quake hitting Japan's capital, one of the most populous metropolitan areas in the world.
Suzanne Mooney/Barcroft Media/Landov
A side view of the new ant species Eurhopalothrix zipacna. Mounting glue and paper appear beneath the ant, one of 33 new species discovered in Central America by Jack Longino, a biologist at the University of Utah.
John T. Longino/University of Utah
The remains of a tree are seen in front of a boulder in the Dome Wilderness area of New Mexico in August 2012. The Las Conchas Fire torched the land in 2011, burning through more than 150,000 acres of forest.
An out-of-control natural gas well in the Gulf of Mexico continued to burn Wednesday after it blew out and caught fire. Beams supporting some of the "Hercules 265 jack-up rig" have collapsed.
U.S. Coast Guard via AP