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.
PHOTOS: This 'Granny' Orca Predates the Titanic. Researchers are studying the information on bowheads to determine how these whales, which can grow to about 60 feet long and weigh 60 tons, live so long. One male might even be around 250 years old. The species is now believed to be the longest-lived mammal.