maiasaura was a large hadrosaurid with a length of up to 9 meters
an unusually incredible amount is known of their lifestyle. They lived in herds and raised their young in densely populated nesting colonies; most died during their first year of life and could create families in their third year, though it would take six years to reach complete adulthood and an average lifespan of eight years.
They lived alongside the Troodon and Orodromeus, and could have been preyed upon by Daspletosaurus.



