How do whales breathe?
Whales are voluntary breathers meaning they have to consciously breath in and out (it’s not an involuntary reaction like we have). They swim to the surface to draw in air through their blowholes. Whales have limited breathing functions through their mouths. When a whale inhales, it fills up its lungs to capacity each time and then exhales 90% of its air supply with each breath. Humans exhale only 25% of their lung capacity. The whales exhale through the blowholes, a whole exhale in less than half a second and sometimes at over 300 mps, while inhaling takes place in a leisurely second.
