Sighting of Rare Chain Catsharks
We spotted these rare sharks in the Gulf of Mexico while studying an extinct mud volcano in the region. Although found off much of the east coast of North and Central America, they are very rarely seen. Even better? They are fluorescent, emitting light they have been previously exposed to.
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This expedition focused on documenting the myriad natural and cultural resources that lie in U.S. waters for the joint National Geographic and 60 minutes television special, The Unknown America. Some exploration sites visited include brine pools, deep-water coral reefs, and several shipwreck sites. These include German U-boat U-166 & Robert E. Lee.