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.
Taking a breath at the surface and holding it while diving to pressures over 250 times that at the surface is an astounding feat.. The record-breaking dives of the Cuvier's beaked whale surpass the southern elephant seal, which previously held the position as the marine mammal with the longest, deepest dive on record.