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.
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.