The Atlantic Ocean

We have now crossed the invisible line where the river's influence fades and the true Atlantic Ocean takes over. This is the second-largest ocean on Earth, covering approximately twenty percent of the planet's surface. …

The primary focus of our expedition is the study of cetaceans—the order of marine mammals that includes whales, dolphins, and porpoises. In these waters, we most frequently encounter the Short-beaked Common Dolphin (Delphinus…

While cetaceans are our 'charismatic megafauna,' the Atlantic off Lisbon is home to many other fascinating residents. One of the most bizarre and wonderful is the Ocean Sunfish, or Mola mola. …

As we navigate these deep waters, take a moment to look toward the horizon, where the sea meets the sky in an unbroken line. This sense of infinity is something few people experience in their modern, urban lives. …