Ocean tech: Robot sea snakes and shoal-swimming subs

In the near future, ocean search-and-repair specialists won't need arms or legs, according to one vision. In fact, they are destined to be much more slithery. "We try to get people to move away from the word snake because it's seen as kind of scary but even I find myself all the time calling it a snake," says Richard Mills from marine tech firm Kongsberg. If the idea of a swimming robot snake doesn't appeal, you might want to skip the next few paragraphs. I first mentioned Eelume to a friend who asked me whether I would be allowed to have a swim with it.