We got some absolutely amazing footage from 7700 metres. More fish than we or anyone in the world would ever have thought possible at these depths. It's incredible. These videos vastly exceed all our expectations from this research. We thought the deepest fishes would be motionless, solitary, fragile individuals eking out an existence in a food-sparse environment. But these fish aren't loners. The images show groups that are sociable and active-possibly even families-feeding on little shrimp, yet living in one of the most extreme environments on Earth.