Researchers have captured the mysterious bluntnose sixgill shark on film, a creature [species] that has been on Earth since before the dinosaurs. Described as "perfectly efficient" by the team from OceanX and Florida State University, the bluntnose sixgill shark is largely still an unknown to researchers, despite having been on the planet for nearly 200 million years. Occasionally, they come to the shallow waters, rising from depths as far as 8,200 feet, according to Science Alert, where they arrive under the blanket of the night sky to feed. In capturing the mysterious bluntnose sixgill on film in the Bahamas, the...