The EPA tries to keep track of all sorts of methane producers — including herds of methane-belching cattle. Emmett Tullos/Flickr hide caption

itoggle caption Emmett Tullos/Flickr

The wreckage in Tacloban, Philippines, on Nov. 16 was overwhelming, after Typhoon Haiyan plowed through. David P. Gilkey/NPR hide caption

itoggle caption David P. Gilkey/NPR

The beef rib mummy that the researchers tested came from the tomb of Yuya and Tjuiu (sometimes spelled Tuyu). Seen here is a mask of Tjuiu, made out of gilded cartonnage, that was also found in their tomb. Andreas F. Voegelin/AP/Museum Of Antiquities Basel hide caption

itoggle caption Andreas F. Voegelin/AP/Museum Of Antiquities Basel

Trout fishing is big business in Montana, bringing in tens of millions of dollars annually. Tom Murphy/Getty Images/National Geographic hide caption

itoggle caption Tom Murphy/Getty Images/National Geographic

Native Westslope cutthroat trout and bull trout swim in the cool waters of the Flathead River near Glacier National Park, Montana. Jonny Armstrong/USGS hide caption

itoggle caption Jonny Armstrong/USGS

The Large Stone Carving is the heaviest stone in the Forbidden City in Beijing. It was believed to have weighed more than 300 tons when it was first transported to the site between 1407 and 1420. DEA/ W. Buss/De Agostini/Getty Images hide caption

itoggle caption DEA/ W. Buss/De Agostini/Getty Images

The Rockaway section of Queens, in New York City, was hit hard by Superstorm Sandy. Many people in the neighborhood, shown here on October 30, 2012, lost power. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

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 hide caption

itoggle caption Courtesy of Georgian National Museum

A very old squished mosquito found in fossilized rock from Montana. Analysis of the insect's gut revealed telltale chemicals found in blood. PNAS hide caption

itoggle caption PNAS

Flooding brought down a house in Jamestown, Colo., on Sept. 18. Matthew Staver/Landov hide caption

itoggle caption Matthew Staver/Landov

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 hide caption

itoggle caption Pornchai Kittiwongsakul/AFP/Getty Images

Gwynns Falls runs beneath Interstate 95 at Carroll Park in Baltimore. The chemistry of this river, like many across the country, is changing. Courtesy of Sujay Kaushal hide caption

itoggle caption Courtesy of Sujay Kaushal

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. hide caption

itoggle caption 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 hide caption

itoggle caption Suzanne Mooney/Barcroft Media/Landov