In the late 19th and early 20th centuries, German scientists and surveyors crossed choppy waters and braved dangerous conditions on ships called the Gazelle, Valdivia and Planet. These arduous expeditions, one of which circumnavigated the globe, yielded several discoveries—including the first documented vampire squid—at a time when little was known about life in the deep sea.
Click here for original story, Deep-sea expeditions over a century ago offer new insight into climate change
Source: Phys.org