While investigating the origin of the rings, National Geographic Explorer and photographer Laurent Ballesta and his team found a riot of colorful sea life, including yellow coral that is seldom ...

Saving the oceans from coral bleaching, plastic pollution, ghost gear, sonar disrupting whale navigation, coral trampled by ...

Just a few meters beneath the clear, blue waters of Okinawa, reef-building corals known as Scleractinia have quietly lived ...