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.
Sea Turtles. Scientists have studied breath-holding behaviors in sea turtles more thoroughly than in freshwater turtles. The leatherback sea turtle (Dermochelys coriacea), a species that frequents cold waters, holds the record for holding its breath -- just over seven hours spent underwater. While the biology of sea turtles differs greatly from freshwater turtles, it's possible freshwater turtles are capable of similar feats, even at high temperatures.