Fattened livers prep white sharks for extreme migrations
Reserves enable long journey from California to Hawaii and back
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2013/07/sm_3_pr246.jpg?fit=860%2C460&ssl=1)
BIG TANK A young white shark temporarily residing at the Monterey Bay aquarium gave researchers a chance to test a virtual gas gauge designed to see how the fish draw down energy stores during their epic migrations.
Randy Wilder/Monterey Bay Aquarium