For this week's Sea Camp, we're diving below the surface to explore the sunlight zone, the portion of ocean that's 0-200 meters deep. This is where phytoplankton eat sunlight, poop out sugar and ...

Sunlight Zone 0 m - 200 m top layer of the ocean where there is enough sunlight for photosynthesis; hence plants tuna, sharks, dolphin, jellyfish, plankton Twilight Zone 200 m - 1000 m a dim zone ...

What has needle-like teeth so large they don’t fit inside its mouth, a huge gaping jaw that completely engulfs its prey, and lives in the ocean zone where sunlight can’t reach? That would be the ...

Just as Earth’s land surface has enormous peaks and valleys, the oceanic world has similarly varied topography. Perhaps the most intriguing of these features is the Mariana Trench — a chasm in the ...