Welcome to the twilight zone. It’s a real place — but under the sea. The mesopelagic zone, also known as the “twilight zone,” is a mysterious region of the ocean between 200 and 1,000 meters in depth.

Much of the shark focus around the Cape is on great whites roaming close to the shoreline as they prowl for seals, but researchers are finding out that several sharks are actually diving deep into the ...

The strength of the biological carbon pump was estimated using direct measurements of nutrients collected over decades. The findings indicate that ocean waters can capture and store larger amounts of ...

The big idea — The ocean plays a major role in the global carbon cycle. The driving force comes from tiny plankton that produces organic carbon through photosynthesis, like plants on land. When ...