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.
Taking a breath at the surface and holding it while diving to pressures over 250 times that at the surface is an astounding feat.. The record-breaking dives of the Cuvier's beaked whale surpass the southern elephant seal, which previously held the position as the marine mammal with the longest, deepest dive on record.