- The blue whale's heart only beats nine times a minute
- A baby blue whale drinks approximately 130 gallons of milk each day
- The blue whale can whistle up to 188 decibels; they are the loudest animals on Earth
- A blue whale's tongue weighs more than a whole elephant, and is large enough for fifty people to stand on it
- The blue whale, the largest animal on our planet ever (exceeding the size of the greatest dinosaurs) still lives in the ocean; it's heart is the size of a Volkswagen
- The Blue whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales (called Mysticeti).
- At over 33 metres (108 ft) in length and 180 metric tons (200 short tons) or more in weight, it is the largest animal ever known to have existed.
- For over 40 years, they were hunted almost to extinction by whalers until protected by the international community in 1966.
- A 2002 report estimated there were 5,000 to 12,000 blue whales worldwide, located in at least five groups.