A recent deep-sea expedition into the Tonga Trench in the Pacific Ocean led to an astonishing discovery: a massive Pacific Sleeper Shark was filmed at an astounding 1,400 meters below the surface.

One of the most infamous creatures of the abyss is the Humboldt squid ... which mimics the bioluminescent distress signal of a deep-sea jellyfish that is under attack, thereby enticing Humboldt ...

Like a deep-sea modern dancer ... plankton and small fish,” Schmidt Ocean said on X. While sea jellies are often casually called jellyfish, many scientists prefer to stick with just “jelly ...