Researchers captured stunning video of a rare deep sea jellyfish during a recent expedition off the coast of Argentina.

Scientists have captured a rare view of one of the ocean's least understood whales—without ever seeing it. By listening to ...

For decades, a single whale’s strange 52-hertz call has baffled scientists, raising haunting questions about its identity, ...

The giant phantom jellyfish, or Stygiomedusa gigantea, was spotted about 820 feet below the surface.

The Schmidt Ocean Institute’s R/V Falkor (too) has been at it again, with ROV SuBastian diving along the coast of Argentina ...

Over about five decades, Dolphin Action and Protection Group founder Nan Rice worked tirelessly to protect dolphins, whales ...

We tend to think of animals as short-lived, especially when we compare their lifespans to human lifespans. But some species ...

Photographers capture mutant crayfish, cleaning fish, and synchronized whales in this year's top underwater contests.

For most of their evolutionary history, narwhals have relied more on sound than sight to survive in the Arctic’s dark icy ...

When researchers from the University of British Columbia set out to film the solitary hunting habits of Northern resident ...

Scientists from the Schmidt Ocean Institute have uncovered an array of remarkable finds off the coast of Argentina, including ...

Greenpeace launches legal challenge against UK government's decision to approve the transfer of two deep-sea exploration licences ...