The Canadian dollar (symbol : $ ; code: CAD) is the currency of Canada. It is abbreviated with the dollar sign $ , or sometimes C$ to distinguish it from other dollar-denominated currencies. It is divided into 100 cents.
14. View. comments. The sperm whale is able to hold its breath underwater for up to 90 minutes because of a unique protein in its blood, an international team of scientists has discovered. The huge mammal will often dive up to 3km deep under water for more than an hour in search of food.
In freezing water, the breathing rate is slower to keep the warm air inside. Sperm whales dive at over 1,200 m (3,600 ft) depths and Cuvier's beaked whale (a type of toothed whale) holds the record for diving amongst any sea mammal: 1,900 m (6,330 ft) (this means 190 atmospheres) for one hour and 25 minutes.