题目选项分析

The migratory paths of the California gray whale and the Pacific humpback now cross at a point roughly two thousand miles northeast of Hawaii, due to human intrusion into the Pacific Ocean along the coast of Oregon. This meeting allows scientists to gather previously unobtainable data about the communication abilities of both of these species, which normally would not come into contact with each other.

Which one of the following statements, if true, would best explain why the situation described above will allow scientists to gather new data?

【选项】Upon coming into contact with whale of another species, whales alter the pitch of their "voices" in an attempt to find a common frequency.