Republican presidential candidate Ted Cruz has seen a surge in support in Iowa, but can Cruz knock the front-runner Donald Trump from the top spot? CNN's Sunlen Serfaty reports.
West Japan Railways, with help from the Suma Aqualife Park, has installed trenches under the tracks near railway switches so crossing turtles can safely cross without accidentally getting killed; the system also helps to prevent disruptions in service.
British lawmakers debate with CNN's Hala Gorani the upcoming vote in parliament that could lead to the UK joining the airstrikes in Syria against ISIS.
Investigators blame a series of technical failures and human errors for the crash of AirAsia flight 8501 in a new report. CNN's Mary Schiavo explains.
At her recent 100th birthday party, Violet Ewen of Swindon, England attributed her longevity to staying active with clubs and vacations as well as having a glass of wine with dinner each night.