Sala, 56, is not simply a marine adventurer; his mission, through the National Geographic project conservation organisation Pristine Seas, is to provide governments with the scientific data they need ...

Deep in the Pacific, humans have tracked a mysterious whale’s call for decades—but no other whale seems to respond. And now, we might be running out of time to find the source.

Very few people make it to the deepest depths of the oceans, which is why new discoveries are constantly made about the ...