The Biggest Monsters That Ever Swam

Most people know that the blue whale is the biggest animal that ever lived. With a length of 30 metres and a weight of 170 tons, it is bigger than any dinosaur and almost as big as a passenger plane. The immense size of the blue and many other whale species mean that they have few natural predators. But it was not always so. There was a time, before the existence of whales, when gigantic sea monsters ruled the oceans - and some were even as big as the blue whale itself.



The Biggest Monsters That Ever Swam

Most people know that the blue whale is the biggest animal that ever lived. With a length of 30 metres and a weight of 170 tons, it is bigger than any dinosaur and almost as big as a passenger plane. The immense size of the blue and many other whale species mean that they have few natural predators. But it was not always so. There was a time, before the existence of whales, when gigantic sea monsters ruled the oceans - and some were even as big as the blue whale itself.