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

Stone-Age cannibalism, elephant seals act as deep sea sentinels, rabbits eat their own teeth, and our ears used to be gills.

Pelican eels live in the mesopelagic zone (also known as the middle pelagic or twilight zone), at depths of around 9,000 feet (2,700 meters) along with other terrifying-looking deep-sea creatures ...

A new study suggests that elephant seals can serve as “smart sensors” for monitoring fish populations in the ocean’s twilight ...

The worlds of the deep sea could not be more different, and yet their stories are fundamentally intertwined. In this movie, we delve into the Twilight Zone.

In a rare and astonishing event in February 2025, a deep-sea anglerfish—known as the black seadevil—was filmed near the ocean ...

Scientists have a different idea of the twilight zone. To them, it’s an area of the open ocean where most fish live – depths of 650 to 3,200 feet.

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

Elephant seals are now key players in ocean research. Fitted with smart sensors, these massive marine mammals are helping ...