A look back at the top stories, trends and entertainment obsessions that defined the last 12 months.

Celebrities, comedians, newsmakers, and the ABC News team look back on the biggest stories, trends and entertainment obsessions that defined the last 12 months.

In celebration of the 50th anniversary of Earth Day, National Geographic presents BORN WILD: THE NEXT GENERATION hosted by “Good Morning America’s” co-anchor Robin Roberts. The one-hour television event presents stories of hope and gives viewers a revealing look at our planet’s next generation of baby animals and their ecosystems, which face daunting environmental changes. Filmed in stunning locat...