1. An immense whale breached the surface.

一头巨鲸跃出了水面。

2. Each whale has its own characteristic song.

每只鲸都有自己独特的歌声。

3. Killer whale calves are usually born in the fall or winter.

逆戟鲸的幼崽一般在秋天或冬天出生。

4. The baby whale develops a thick layer of blubber to protect it from the cold sea.

幼鲸长了一层厚脂肪层以抵御寒冷的海水。

5. We can identify each individual whale by its song.

我们可以通过鲸歌辨别每一只鲸。