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.
A whale uses it s blowhole to breathe in air and when you see water spurting from a whales blowhole that s just the water vapour from the whales lungs and any water around the blow hole being blown into the air as it breaths out. 1  Actually whales don t breathe underwater. 2  They hold their breath underwater instead.