Dinosaur dental fossils reveal bird-like parental care bonds

Baby dinosaurs were likely fed more nutritious food than their adult counterparts, a finding that could offer insights into their social evolution, suggests a new study. Paleontologists uncovered this finding by studying wear on the fossilized teeth of Maiasaura peeblesorum, a duck-billed dinosaur species that lived about 75 to 80 million years ago during the Late Cretaceous. First discovered in Montana, these large, herbivorous dinosaurs lived in herds and were thought to have been highly social creatures, especially in contrast to those that may have had different reproductive strategies.