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.
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.