The Ant Forage Habitat Facility is featured in this image photographed by an Expedition 38 crew member in the Harmony node of the International Space Station. The study examines the behavior of ants by comparing groups living on Earth to those in space. (NASA/Flickr)
The Year in Pictures: 2016 - NBC News Chacha, a male chimp, screams at a worker in Sendai, northern Japan on April 14, after fleeing from a zoo and trying to avoid capture by climbing an electric pole. Chacha was on the loose nearly two hours before he was sedated and returned to the Yagiyama Zoological Park
Cairo, Egypt. A relative of a passenger who was flying aboard an EgyptAir plane that vanished from radar en route from Paris to Cairo overnight cries as family members are transported by bus to a gathering point at Cairo airport. Debris from the missing plane was found floating in the Mediterranean but investigators appeared no closer to explaining why flight MS804 suddenly plunged into the sea killing all 66 on board.