Citizen scientists uncover world’s largest coral colony off Australia
A mother-daughter team with Citizens of the Reef identified the world’s largest known coral colony on the Great Barrier Reef—a Pavona clavus spanning about 111 meters and covering roughly 3,973 square meters—verified by underwater measurements and a 3D model; the exact location isn’t released to protect the site, and the find underscores the value of citizen science in reef monitoring amid ongoing bleaching.