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.
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.