Scientists once thought sharks never moved around much. They believed sharks didn’t travel far from the area where they were born. Now scientists are discovering that this may not be true. Tags were attached to the backs of six adult white sharks. The rage recorded data on the sharks. They traveled the location of the sharks for a year. The records showed that the sharks moved to warmer water in the winter. It seems that they do this to find food. Some fish and sea lions move to warmer ocean water in the winter. When the fish move, the sharks follow them. Data also shows that sharks and study their habits. It also explains why some areas have fewer fish and sea lions!
What is the main idea of the passage?
A. New studies show that sharks starve when fish migrate.
B. New studies show that sharks travel more than scientists once thought.
C. New studies show that sharks have created ocean paths to travel along.
D. New studies show that sea lions never travel far from home.