Sperm Whale Surprises Scientists

April 15, 2015 - On a recent expedition aboard the Nautilus vessel in the Gulf of Mexico off the Louisiana coast, researchers got a giant surprise. As they viewed footage streamed by the Hercules remotely operated vehicle (ROV), a sperm whale swam into the frame and proceeded to circle around the ROV multiple times. The ROV was operating at 1,962 feet (598 meters) below sea level.

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"Rare Video Captures Sperm Whale in Deep Sea"

Video courtesy Ocean Exploration Trust/GISR