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.
Green sea turtles are able to hold their breath for hours at a time. Because they are cold-blooded, the temperature of the water affects their ability to hold their breath. In colder water they can hold their breath for longer.