The dinosaurs were re-infected with helminths

Once reigning on earth and ocean 75 million years ago, dinosaurs still became the prey of those in the " bottom of society " - worms in the gut.

(Photo: Reuters) An intact fossil of the duckbill dinosaur found in Montana revealed the entire details of the animal's organs, including tiny trenches created by helminths, the group at University of Colorado, USA, said.

They found more than 200 suspicious tracks that are most likely created by tiny worms. They are similar to burning worms and nematodes that live on animals today.

" This study is interesting because it provides evidence of tiny organisms living in dinosaur abdomen ," said assistant professor of geology Karen Chin.

" Usually a corpse is always attractive to countless scavengers, but this animal is almost undirected ," Tweet said. " Probably because the body of the animal was buried before it had a chance to be torn, then the remaining parasites were raging inside the animal when it died ."

Duck-billed dinosaurs are carnivores, up to 15 m long and weigh 3 tons. The animal has the nickname " Leonardo ".

MT