Down in the midnight zone, where light fades to nothing, a single breath becomes a long commitment. Sperm whales slip beneath the surface and vanish into cold pressure that would crush most animals.

Sperm whales are among the most extreme predators on Earth, diving more than 2,000 meters into the deep ocean to hunt giant squid in complete darkness. They can remain underwater for over 90 minutes, ...

The most celebrated natural antagonism between sperm whales and squid, conjuring up images of the Leviathan grappling with the Kraken in the abyssal trenches, almost certainly involves the jumbo squid ...

Mucus, feces, skin and other shed tissue allowed researchers to investigate which creatures have been swimming in two deep-sea canyons without having to observe or catch them ...