Hi everyone, my name is Sophie. I'm in third grade and I love the ocean. I love swimming in it. I love the animals living in it.And I don't want to grow up in a world where life in the ocean is disappearing. So yes, I want to be a marine biologist when I grow up. I got to learn that the ocean needs our help.Things are changing and if we don't take action right now, it will not continue to be the amazing place it is today. Another thing I learned is that some of the biggest problems in our oceans actually st ...

I'm here to meet some of South Korea's toughest women holding on to a way of life that goes back generations. These guys here, these are the legendary free divers of South Korea. They're known as the Heno, which translates literally as sea women.And when they dive, they don't use any oxygen, just a single breath that takes them down to the sea floor where they collect up seafood to be sold at the market. These women free dive for up to 6 hours a day through harsh winters, even through pregnancy. It's a prac ...