Giant Dinosaur Unearthed In Argentina

sciencehabit writes Researchers working in Argentina have discovered the most complete skeleton of a titanosaur, a group of gigantic plant-eating dinosaurs that dominated the Southern Hemisphere beginning about 90 million years ago. The new dino, named Dreadnoughtus schrani, was 26 meters long and weighed about 59 metric tons—that is, twice as long as Tyrannosaurus rex and as heavy as a herd of elephants. That puts it on a par with other well-known giants such as Argentinosaurus (but it's four times as large as the perhaps better known Diplodocus). The researchers say that the beast was so big it would have had no fear of predators. And it was about to get bigger: A close examination of the fossils, especially its back and shoulder bones, indicates that the animal was still growing when it died.

Predators become Parasites?

[wisnoskij]

But if it is so big, instead of tiny insectoid parasites, a pack of rats might just burrow into its hide and make a nest, instead of fleas it might have ferrets like creatures crawling over it and biting it to drink its blood. And I do not even want to think about what it might have instead of the standard tapeworms. It would be interesting to research what type of ecosystems build up around such giant creatures.

Probably just never stopped growing.

[Wycliffe]

It's not uncommon in many reptiles to just never stop growing. I wonder if some of these dinosaurs are
just exceptionally large specimens of already know dinosaurs instead of entirely new species.