From discovering a new human ancestor deep in a South African cave to protecting more than one million square miles of ocean through its Pristine Seas initiative, National Geographic made its mark on 2015 through science, exploration, and storytelling. In the video above, Nat Geo reflects on its many achievements over the past year, including new discoveries and expeditions across the globe. 21st Century Fox expanded its partnership with the National Geographic Society in 2015 to create National Geographic Partners, bringing together all of National Geographic's media assets, including magazines, book and map publishing, National Geographic Studios, and more. The deal increased the Society's endowment to more than $1 billion.