Among the myriad creatures that populate our ocean, some stand out as having an outsized impact on the marine environment—shaping and maintaining habitats that themselves sustain countless other forms ...

This story appears in the February 2017 issue of National Geographic magazine. Learn more about ocean life in Sea of Hope: America’s Underwater Treasures, premiering Sunday, January 15th at 7/6c ...

“The Southern Ocean has long been recognized by scientists, but because there was never agreement internationally, we never officially recognized it,” says National Geographic Society ...

When I ask him about some of his favourite underwater ... at National Geographic in 2008 to make his case for saving the oceans. “I told them let’s go to the last wild places in the ocean.