Within the various fossilized nest in Montana, tiny hatchlings of 35 centimeters, juveniles of 1-meter in length and fragments of others that may have been nearly 2-meters long were found. This disparity in size suggested that Maiasaur babies and juveniles either grew rapidly or stayed in the nest a very long time. This outstanding discovery not only provided the first baby dinosaurs ever found in a nest but also fueled the flame of the dinosaur warm-bloodedness controversy.