The Cognitive Dance of Negation and Shark Migration

A silky shark named Genie traveled from the Galapagos Islands out to the open ocean and back – over 17,000 miles – over the course of a year and a half. That's an average of 31 miles per day, making Genie's journey the longest recorded migration for a silky shark.

Marine scientist Pelayo Salinas de León and his team named Genie in honor of the late marine biologist Eugenie Clark – also known as "The Shark Lady." She devoted her life to the study of sharks and to improving their reputation.

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