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 contrast, one of your breaths empties only part of your lungs. When a whale comes to the surface after a dive, it breathes out the âoldâ air quickly, all in one breath. Because the whale empties its lungs with such force, the air travels a great distances â 10, 20, even 40 feet. And because its nose is on the top of its head, the air goes straight up.