In the darkness nearly a mile beneath the ocean’s surface, where the pressure would crush a human and temperatures hover just above freezing, a creature with wings wider than a car glides through the ...

For deep-diving mixed-gas divers, it's far worse. Routinely diving below 130 ft (40 m), the divers are always in pitch darkness, relying on work and helmet lights, and they are tethered to the surface ...

For three years, Pennsylvania-born scuba diver Chris Donnelly prepared for the underwater expedition of a lifetime: a journey to the SS Andrea Doria. The so-called “Mount Everest of Shipwrecks,” it’s ...

The whales are considered "data deficient" because they're so elusive New England Aquarium/Facebook A rare species of whale was sighted off the coast of Cape Cod this month Three True's beaked whales ...