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.
In terms of how long a dolphin can dive for some dolphins are able to hold their breath for up to 20 minutes before coming up for air while other dolphins are only able to hold their breath for 5 â 7 minutes.The length of time that a dolphin can hold its breath for varies from one species to the next.n terms of how long a dolphin can dive for some dolphins are able to hold their breath for up to 20 minutes before coming up for air while other dolphins are only able to hold their breath for 5 â 7 minutes.