Unexpected Shark Gives Explorer Shock of His Life

Dec. 16, 2014 - A National Geographic researcher is startled to see a Greenland shark where none has ever been seen before: off Russia's Franz Josef Land. An underwater camera captured images of the shark, a species scientists know very little about.

Read more about the Greenland shark's surprising appearance.

Click to learn more about this and other Pristine Seas expeditions.