The specimen has been acting way different than any type-H creature.
It has been walking in heards of different herbivores, it has gained they're trust.
The instinctive traits of the maiasaurus still show in the subject, it was caught on one of the cameras that it has been saving/protecting herbivores from predators.
It uses it's body as a weapon throwing it's weight on top of the enemies stunning them, some times even killing them.
[Still waiting for more information]