How deep can fish live in the ocean? That question has captivated me for more than a decade. But my research team’s discovery of the deepest sea fish, announced this week, might not be the final answer. There may be more. How deep – and how strange – remains open for debate.
Last year, my colleagues and I went on an expedition to the deep trenches around Japan. Having already found the Mariana snailfish in 2014 – thought to be the deepest ever – we had a hunch that with more exploration and a better understanding of things like temperature, the Japanese trenches would host a fish at even greater depths.
