The Hadrosaur or "DuckBilled" dinosaur walked like a duck, had a beak like a duck, webbed feet like a duck and probably had the exact same"waddle" like today's ducks. No two eggs are the same, and is in a natural condition.
The difference is that it lived 80-65 million years ago and was a member of the ornithopoda's - the ancestors of modern birds.
The adult hadrosaur was nearly 30 feet long, and weighted about 3 tons. Incubation of the eggs at that adult weight would make things precarious. One theory suggests that warming for incubation was probably provided by warming the vegetation where the egg was placed. The vegetation released heat through fermentation.
Comes with information and authenticity from Jensan Scientifics
Size: 5" H X 5" W X 5 1/2" L