Sperm whales are fascinating individuals with impressive deep-diving capabilities. Their whole anatomy is cleverly designed for diving for long periods of time which can be for an average of 45 minutes all the way up to two hours!
But how do they achieve this astonishing feat? Well, the whale’s muscles are rich in oxygen-carrying proteins which allow them to store 10x more oxygen than humans. They’re also able to replace up to 90% of the air in their lungs in a single breat.