Generation after generation of scientists have dedicated energy to one unassuming animal. University of California researchers have gathered 350,000 observations on over 50,000 elephant seals over ...

By Liz Kimbrough A transparent goby fish drifted through the darkness, its skeleton visible through paper-thin skin. Nearby, ...

Almost one decade of recorded data retrieved from deep coral reef dives reveals some of the first evidence of that climate ...

GUAM — Only a scattering of light penetrates the deep water, more than 300 feet beneath the ocean surface off the coast of Guam. It's like twilight to the human eye, even in the middle of the day.

This zone contains a vast amount of marine life, potentially over 90% of all ocean life, and supports important commercial and recreational fisheries. Creatures in the twilight zone help mitigate ...

Fishing experts are looking for ways to fish in the mesopelagic zone, a layer of water that stretches from 200-1,000 meters (660-3,300 feet) beneath the surface, which has, thus far, remained ...

: [POST-BROADCAST CORRECTION Aug. 4, 2025: A previous version of this report incorrectly said that there are phytoplankton in the upper layer of the atmosphere. Phytoplankton live in the upper layer ...

Researchers retrieved reef monitoring devices that had been placed in deep coral reefs in Guam. The devices were placed up to 330 feet below the surface.

The sun shimmers across the glassy surface of Blue Hole, a heart-shaped underwater sinkhole, as two divers prepare to descend into its treacherous, turquoise abyss. Entering the twilight zone “feels ...