Since purchasing and painting Shane Foulkes's Anatotitan and chicks resin kit, which in and of itself is a spectacular kit, I began trying to get a bit more familiar with the animal with which the kit is expertly sculpted after. Anatotitans were late Cretaceous animals that fed on plants. One can guess they might have dabbled like ducks considering their duck like bills and rows of grinding teeth. However, was Anatotitan a separate creature or not from other hadrosaur species? In doing some research, it has been suggested that Anatotitan is a mature form of Edmontosaurus - another named hadrosaur that has very similar features (see Smithsonian.com for information http://www.smithsonianmag.com/science-nature/goodbye-anatotitan-100859037/?no-ist ).
A recent discovery has been made with Edmontosaurus. They might have sported a comb quite like a rooster on their foreheads! http://www.sci-news.com/paleontology/science-edmontosaurus-fossil-comb-01628.html
And mummies of some hadrosaurs have been discovered and in time we might learn more about their inner workings and help develop a more complete view of their life.
see the National Geographic video about a dino autopsy http://www.youtube.com/watch?v=KBMy7lxvB4I
Do you like dinosaurs? Which of the giant beasties are your favorites?