Oceanic manta rays dive to record depths of 1,250 meters (4,100 feet), according to a first-of-its-kind study to examine in detail the extreme deep-diving behavior of these rays. Researchers tracked ...

Scientists have found that oceanic manta rays routinely make extreme dives of more than 1,200 meters – three-quarters of a mile – but it's not to feed, nor is it happening everywhere in deep water.

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 ...