A natural gas drilling rig just east of downtown Fort Worth, Texas. A new decade-long study finds the region's Barnett Shale formation has sufficient gas reserves to last another 25 years. David Kent/MCT/Landov/Fort Worth Star Telegram hide caption

itoggle caption David Kent/MCT/Landov/Fort Worth Star Telegram

A poll needs to ask about randomly selected children in households across the country to bring context to what's happening with kids like 7-year-old Henry Condes in Los Angeles. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

For some kids who grow up in poverty, the bond developed with Mom is especially important in dealing with stress. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Alcohol: a key babyproofing product for this little mother. Illustration by Daniel M.N. Turner/Photos via istockphoto.com hide caption

itoggle caption Illustration by Daniel M.N. Turner/Photos via istockphoto.com

Larry Bonassar shows off an ear that he and his colleagues at Cornell University built out of living cartilage cells with the help of a 3-D printer. Lindsay France/Cornell University Photography hide caption

itoggle caption Lindsay France/Cornell University Photography

Nuclear bomb tests like this one, conducted at the Nevada Test Site in 1957, are helping scientists understand how the human body works. Photo courtesy of National Nuclear Security Administration / Nevada Site Office hide caption

itoggle caption Photo courtesy of National Nuclear Security Administration / Nevada Site Office