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.
Mystery of how sperm whales hold their breath for 90 minutes solved as scientists discover the key is unique protein in their blood.
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.