Based on the abundance of hadrosaur
remains in late Cretaceous sediments, scientists believe
that they must have been among the most successful of all
dinosaur groups, yet these bipedal herbivores had no obvious
means of defense. They did not have horns, plates, spikes or
armoured skin. Their top speed was described as a slow
waddle and the best defense they could provide was possibly
kicking and stamping with their hind legs. Their young in
particular would have been exceedingly vulnerable to
predation. So how did these creatures become one of the most
successful group of dinosaurs in the Cretaceous?
|