Atlantic: The Wildest Ocean on Earth (2015)

S1E2 Mountains of the Deep

In the expansive South Atlantic, enormous groups of dolphins and vast colonies of penguins thrive among spectacular islands formed by intense volcanic activity beneath the surface. Some regions are teeming with life due to nutrient-rich upwellings, while other areas, marked by their extreme isolation and deep ocean depths, are home to an array of strange and fascinating creatures.