Jericho the lion, right, seen here fighting with Cecil last year, was the subject of competing stories Saturday, as groups in Zimbabwe disagreed over whether he had been killed. KEN WATKINS/SN /Landov hide caption

itoggle caption KEN WATKINS/SN /Landov

Flames from the Rocky Fire approach a house in Lower Lake, Calif., Friday. More than 5,000 firefighters are now battling large blazes in California; hundreds of residents are under evacuation orders in affected areas. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

Concerns about pollution in the waters around Rio have prompted the world sailing federation to take action ahead of next year's Olympic Games. Here, garbage is seen on Bica Beach, on the banks of the Guanabara Bay, with the Sugar Loaf mountain in background, earlier this year. RICARDO MORAES/Reuters /Landov hide caption

itoggle caption RICARDO MORAES/Reuters /Landov

Debris from an airplane that was found on the Indian Ocean island of Reunion has been transported to France, where technicians will try to determine whether it is from a missing airliner, Flight MH370. Raymond Wae Tion/Maxppp /Landov hide caption

itoggle caption Raymond Wae Tion/Maxppp /Landov

The Ebola vaccine from a trial in Guinea needs to be kept at a temperature of minus 60 degrees Celsius, the World Health Organization says. Storage devices use jet fuel to keep the right temperature for up to five days in the field. Sean Hawkey/Sean Hawkey hide caption

itoggle caption Sean Hawkey/Sean Hawkey

A photo released by Virgin Galactic shows a badly injured SpaceShipTwo pilot Peter Siebold drifting under his parachute after last October's accident that destroyed the spacecraft during a test flight. Mark Greenberg/Virgin Galactic hide caption

itoggle caption Mark Greenberg/Virgin Galactic

Migrants cross a road near the Eurotunnel on Wednesday in Coquelles, near Calais, France. A Sudanese man, between 25 and 30 years old, was killed by a truck as up to 1,500 migrants tried to force their way into the tunnel, officials say. Yoan Valat/EPA/LANDOV hide caption

itoggle caption Yoan Valat/EPA/LANDOV