Scientists identify eerie new species of deep-sea jellyfish using only high-definition video

Researchers have identified an eerie new form of deep-sea creature using only high-definition video. In 2015, scientists with the National Oceanic and Atmospheric Administration (NOAA) piloted a remotely operated vehicle through an underwater canyon off the coast of Puerto Rico. At a depth of more than two miles the drone came across a ctenophore, or comb jelly, unlike any other species researchers had encountered. It was rectangular, had two long tentacles and moved as if it was anchored to the seafloor. Unable to take a specimen, researchers used the footage to develop an anatomical diagram of the gelatinous blob, which they've named Duobrachium sparksae.