The Labrador Retriever has been the most popular dog breed in the U.S. for nearly 30 years. A blue whale's tongue weighs around 7,000 pounds; twice the weight of the average car. The dog with the loudest recorded bark is a German Shepherd named Charlie whose bark registered at 113.1 decibels. That's almost loud enough to cause hearing damage. The oldest known bird was a Major Mitchell's Cockatoo named Cookie who lived 82 years at Chicago's Brookfield Zoo. The oldest domestic house cat ever recorded is a tabby mix named Creme Puff who lived 38 years and 3 days. A hungry or thirsty butterfly will drink blood if given the chance!