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.
While sleeping, a red ear slider can hold its breath for a couple of hours. When awake, it can hold its breath for about a half an hour.owever, the fin whale can hold its breath for up to twenty minutes, whereas the giant sperm whale can hold its breath for as long as two hours (though the average duration seems to be about forty to ninety minutes).