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.
The Greenland shark is the world's new champion of vertebrate longevity. Scientists just named the longest-living species of vertebrate animal. It's a creature that can live up to 400 years old, almost twice the lifespan of the oldest giant tortoises or bowhead whales, nature's next runners-up. These lords of longevity are the Greenland sharks, Somniosus microcephalus.