Balaenoptera musculus is a pale whale, and when seen through the blue filter of the ocean, its pallor goes turquoise or aquamarine.

• 蓝鲸是种浅色的鲸鱼，透过蓝色海水的滤光作用，它浅淡的皮肤就会变成蓝绿色或海蓝色。