We know more about the surface of Mars than we know about the deep sea, you may have heard people say. That’s not just NASA bragging. While the deep sea is the largest ecosystem on the planet, we know very little about it. It was once thought to be completely devoid of life, which couldn’t be further from the truth. But because the deep sea is frigidly cold, totally dark, and, well, deep, it’s extremely difficult to access. The challenges in collecting and caring for deep-sea animals meant that most…
