每日口說挑戰 鳥怎麼都不會迷路啊？牠們自有一套本領！ (How do Birds Navigate? - Sun, Stars, and Magnetic Senses)

今日挑戰句子

Unfamiliar constellations were useless to the birds, which means that they learn constellations as they migrate and use them to navigate on future migrations.

不熟悉的星座對鳥類而言是毫無用處的，這意味著牠們一面遷徙，一面在認識星座，未來的遷徙就可以利用星座來導航。