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.
The longer it takes to get to the tasty hunting grounds, the less time is available for hunting. A typical dive lasts 60 minutes. No one knows how long a sperm whale can hold its breath but estimates range from 90 minutes to 2 hours. What must it feel like to rise toward the surface.