WASHINGTON— The National Marine Fisheries Service announced critical habitat designations today for five threatened coral species living in the Pacific Ocean. The agency’s final rule protects 92 ...

A bright red “sea toad” and an underwater mountain four times taller than the world's biggest skyscraper are among the jaw-dropping discoveries made by a team of deep-sea explorers in a single stretch ...

Giant manta rays, dolphin encounters, and rainbow reefs await in Hawaii's best snorkeling spots. Dive into paradise with our ...