News Animals

Fattened livers prep white sharks for extreme migrations

Reserves enable long journey from California to Hawaii and back

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

By Susan Milius

- More than 2 years ago

A white shark’s big fat liver, which can plump up to more than a quarter of an animal’s body weight, turns out to be the fuel tank for extreme migrations.