Bottlenose dolphins travel in groups called pods, like this one swimming in Hawaii.Bottlenose dolphins travel in groups called pods, like this one swimming in Hawaii.Photograph by Flip Nicklin, Minden PicturesWorld Oceans DayWorld Oceans Day, on June 8, is all about protecting the ocean. A healthy planet needs a healthy ocean, but our waters face huge risks from overfishing, climate change, and plastic pollution. Luckily, you can help! Our Ocean Portal has tips, galleries, games, and more. Check it out to learn about the ocean and what you can do to stop plastic pollution.