Urban Camouflage for Reptiles: "I basically thought about how turtles have camouflage that doesn't really work very well for them in the urban environments they often live in these days," Keats said. "So my thought was, can we go to our military and look at urban warfare as inspiration." Jonathon Keats hide caption
The deceptively adorable fangblenny is only 2 inches long and lives in places like Australia's Great Barrier Reef. Anthony Romilio/University of Queensland hide caption
Would having to wait 25 seconds for your snack prompt you to make healthier choices at the vending machine? New research suggests the answer is yes. M. Spencer Green/AP hide caption
A well-regarded intensive care doctor in Virginia says he has had good success in treating 150 sepsis patients with a mix of IV corticosteroids, vitamin C and vitamin B, along with careful management of fluids. Other doctors want more proof — the sort that comes only via more rigorous tests. Sukiyashi/Getty Images/iStockphoto hide caption
A Tasmanian tiger in captivity, circa 1930. It is believed that the last wild thylacine was shot in 1930 and the last captive one died in 1936. Topical Press Agency/Getty Images hide caption
It doesn't require yoga or meditation to destress by taking long, slow breaths. laflor/Getty Images/iStockphoto hide caption
In its prime, the Hero sailed through frigid temperatures and ice-strewn waters in the South Pole. But now it's sinking, leaking oil and threatening Washington's oysters. Molly Solomon/Oregon Public Broadcasting hide caption
Arriving in the United States after age 10 makes it harder to learn English. Chelsea Beck/NPR hide caption
The levees below the Oroville Dam were damaged by heavy floodwaters this winter and many need repairs. Lauren Sommer/KQED hide caption
This photo, made available by SpaceX Thursday, shows the company's Falcon 9 rocket launching from Kennedy Space Center's historic Pad 39A in Cape Canaveral, Fla. SpaceX hide caption
Eddie Salmeron of the California Ghetto Carping club holds the 50-pound carp he caught in Los Angeles' MacArthur Park. Eddie Salmeron hide caption
Pesticide warning sign in an orange grove. The sign, in English and Spanish, warns that the pesticide chlorpyrifos, or Lorsban, has been applied to these orange trees. Jim West/Science Source hide caption
Vials of the HPV vaccination drug Gardasil. Doctors and public health experts say the new version of the vaccine could protect more people against cancer. Matthew Busch for The Washington Post/Getty Images hide caption