Scientists Discover Never-Before-Seen Species 4,000 Meters Deep in the Puerto Rico Trench

In 2015, a deep-sea expedition sent robotic eyes into one of Earth’s most mysterious places: the Puerto Rico Trench. What they recorded 4,000 meters down stunned even veteran scientists. With no physical specimen, and no chance for retrieval, only high-definition video could capture the truth of what was floating just above the ocean floor. It moved like nothing else. This is a journey into the unknown, a place scientists discover new species unknown to man 4,000m below the Puerto Rico trench.