A photo provided by Bryan O’Malley shows a collage of foraminifera, a kind of single-celled organism, found in a potential mining zone and arranged by O’Malley, a lead researcher. An ocean-mining company has funded some of the most comprehensive scientific studies to date, and peer-reviewed results have begun to emerge. (Bryan O’Malley via The New York Times) By Sachi Kitajima Mulkey Industrial mining of the seabed could reduce the abundance and diversity of tiny animals living in the depths...