Along Canada’s Atlantic coast researchers use a high-tech robot, ROPOS, to probe the waters of the Atlantic Ocean for new species. Over two-thirds of Earth is covered by ocean, yet scientists only know a small percentage of the creatures that lie beneath the water’s surface leaving the biodiversity of marine life on the planet largely uncharted. By taking a close-up look at one small part of our vast oceans, scientists hope to learn how to protect the species we know about, and perhaps discover new species along the way.