Certain species of fish swim in large clusters called schools, whose function is not entirely understood. Experiments have shown that individual fish, when removed from a school, demonstrate higher heart rates than those found within the school. Fish may experience stress at being separated from fellow members of their species, but an alternative explanation is that, for hydrodynamic reasons, swimming alone requires more physical exertion.
Which of the following, if discovered in an experiment, would support one of the two hypotheses and undermine the other?
【选项】
When individual fish are removed from a school, they demonstrate higher heart rates than types of fish that do not normally swim in schools.
选项是否正确？