The blue whale is the largest animal ever to roam the planet. It is larger than even the largest dinosaurs. The heart of an adult blue whale is the size of a compact car, and a small child could crawl through its arteries.
The blue whale is the largest animal ever to roam the planet. It is larger than even the largest dinosaurs. The heart of an adult blue whale is the size of a compact car, and a small child could crawl through its arteries.
