We know next to nothing about 99.999 percent of the seafloor. How one researcher plans to democratize deep-sea exploration.

The footage was caught by a deep-sea vessel known as SuBastian. The vessel dropped 7,000 feet through the ocean on Christmas morning, stumbling upon a deep-sea quid species.

Australia should back a global moratorium on deep-sea mining as the risks are too high, argue conservation experts.

The colossal squid—one of nature’s most elusive animals, and handily the world’s most massive squid species—was first identified 100 years ago using remains found in the stomach of a sperm ...

This 14-inch deep-sea creature, closely related to sea horses and pipefish, makes its home in the waters off south and east Australia, according toNational Geographic. It has a multitude of ...

Images from the exciting encounter, which occurred 2152 meters (1.34 miles) deep in the Weddell Sea, show the vibrantly-colored squid with scratches and sucker marks on its body.