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.
Quick Answer. An orca, more commonly known as a killer whale, can hold its breath for about 20 minutes. This is the longest time any type of dolphin can hold its breathe. Continue Reading.