Paleontologists originally assumed a growth on a leg bone was evidence of a break. The team eventually focused its attention on one fossilized leg bone. Researcher Seper Ekhtiari holds a cast of a cancerous dinosaur fossil in a handout photo. Finally, the fossil was compared to a human leg bone with bone cancer. Herd possibly protected sick dinoEkhtiari said the dinosaur was very sick.

Source: CBC News August 04, 2020 02:53 UTC