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.
Best Answer: It depends on the type of whale. Killer whales can hold their breath for about 20 minutes while Sperm whales can hold their breath for over an hour! If the whale is a deep-diving whale, it can typically hold it's breath longer than more shallow diving whales. Also, dolphins (a killer whale is the largest in the dolphin family) can't hold their breath as long as true whales.