This story appears in the July 2017 issue of National Geographic magazine ... not a plant—a cousin of sea stars—and it can swim. Photographer Laurent Ballesta dived as deep as 230 feet ...

Read this story and more in the June 2018 issue of National ... Geographic magazine. On a boat off Costa Rica, a biologist uses pliers from a Swiss army knife to try to extract a plastic straw ...

Oceanxplorers, a new documentary series from National Geographic, invites us to dive ... James Cameron, known for his passion for deep-sea exploration, described the series in a press release ...