ADAPTATION Respiration - Oxygenation
|Cetaceans have a larger body than most terrestrial animals.
This means a larger blood volume which increases the amount of oxygen transported
and stored in the body.
Cetaceans have a high amount of myoglobin in the muscle tissue. This iron-rich protein functions somewhat like hemoglobin in the blood. It binds with oxygen and can be stored for a period of time, improving the oxygenation efficiency to working muscles. (Zahn, 1988)