Decades ago, marine scientists made a startling discovery in the deep sea. They found environments known as hydrothermal vents, where hot water surges from the seafloor and life thrives without sunlight.
Then they found equally unique, sunless habitats in cold areas where methane rises from seeps on the ocean bottom.
Could vents and seeps co-exist in the deep, happily living side-by-side?
No one thought so. Until now.