单选题 Listen to Track 67.

A. It is not obvious how whales find their way.
B. Different whales have different ways of locating food.
C. Whales have a poor sense of orientation.
D. Scientists have not been able to track the whales.

【正确答案】 A

【答案解析】[解析]
Narrator
Listen again to part of the lecture. Then answer the question.
Professor
It's pretty remarkable, because the whales manage to return to the same places year after year, and have to travel over an enormous area of ocean in order to do it. I mean, it's not like whales can just look at a map, right?
Narrator
What point does the professor make when she says this:
Professor
I mean, it's not like whales can just look at a map, right?