As we celebrate World Ocean Day, new research shows the role that the ocean twilight zone plays in keeping the planet healthy ...

The twilight zone, or mesopelagic layer, is a hauntingly beautiful stretch of ocean where light diminishes ... the lifeblood of countless oceanic food chains. They feed on plankton, tiny ...

Phytoplankton is essential for maintaining balance in the marine food chain ... However, an ocean layer below the surface called the "twilight zone" (where light is unavailable) can also affect ...

Phytoplankton is essential for maintaining balance in the marine food chain ... However, an ocean layer below the surface called the "twilight zone" (where light is unavailable) can also affect ...

“In these warm periods, far fewer organisms lived in the twilight zone, because much less food arrived from surface waters.” Particles of organic matter from the ocean’s surface drift down ...

sink to the twilight zone. There, most of it becomes food for fish and bacteria. The rest drifts down to the deep ocean floor where it is locked away in sediment. Organisms called phaeodarians ...

For the first time, Antarctic krill have been found on seafloor vents. One scientist is working to figure out what they are ...

To most of us, the ocean is a no man’s land ... fishing fleets to grind life in the twilight zone into fish meal, fertilizer and plant food. Before they move forward with these plans ...