The ocean's twilight zone lies between 200 and 1,000 meters below the surface, where light starts to fade but is not ...

Marine biologists at the University of California Santa Cruz have tagged thousands of northern elephant seals with smart ...

There seems to be too much of a radioactive element in rocks deep in the Pacific Ocean – how did it get there 10 million ...

Over the past 60 years, marine biologists at UC Santa Cruz have monitored the behavior of northern elephant seals that ...

By studying elephant seals' hunting patterns, scientists have discovered a new way to monitor deep-sea fish populations.