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Video: River of Sharks

The night belongs to whitetip reef sharks, which sleep by day but patrol the seafloor after dark near Cocos Island. Watch Video Read All Cocos Island Expedition Posts...

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Meet the Author

Enric Sala
Marine ecologist Dr. Enric Sala is a National Geographic Explorer-in-Residence who combines science, exploration and media to help restore marine life. Sala’s scientific publications are used for conservation efforts such as the creation of marine protected areas. 2005 Aldo Leopold Leadership Fellow, 2006 Pew Fellow in Marine Conservation, 2008 Young Global Leader at the World Economic Forum.