DNA testing
Monday
Sunday
Czar Nicholas II is shown with his family in the 1910s. All were executed shortly after the 1917 Russian Revolution. Remains of the czar, his wife, Alexandra (top right) and their children — Olga (from left), Maria, Anastasia, Alexei and Tatiana — have all been identified. Now the Russian Orthodox Church has ordered new DNA tests to confirm the identities of Maria and Alexei. Fine Art Images/Heritage Images/Getty Images hide caption
Will DNA Tests Finally Settle Controversy Surrounding Russia's Last Czars?
Tuesday
A diver swims in a kelp forest in California's Channel Island National Park, where several of the state's marine protected areas are located. National Park Service hide caption
In California's Protected Waters, Counting Fish Without Getting Wet
Friday
A Maasai boy and his dog, near the skeleton of an elephant killed by poachers outside of Arusha, Tanzania, in 2013. Jason Straziuso/AP hide caption
DNA Tracking Of Ivory Helps Biologists Find Poaching Hotspots
Thursday
Edwin Hopkins with his mother, Alice, and father, Frank Jr. Hopkins was killed aboard the USS Oklahoma during the Japanese bombing of Pearl Harbor, but his remains never were identified. Courtesy Tom Gray hide caption
Family Of Unaccounted For USS Oklahoma Sailor Wouldn't 'Let Him Go'
Wednesday
Christopher Abernathy (center) is released from the Stateville Correctional Center on Wednesday in Crest Hill, Ill. Terrence Antonio James/TNS /Landov hide caption