Answer:
Some dinosaurs were social creatures. Recently
discovered evidence indicates that they travelled
together and that some may even have migrated (because
dinosaur fossils have been found above the Arctic
Circle, where food supply would have been seasonal).
Grouped hadrosaur nest sites have been found with
badly crushed eggshells and skeletons of baby
dinosaurs (with slightly worn teeth) still in the
nests, suggesting that some babies stayed in their
nests after hatching and probably were fed by parents.
Group behavior
in the Triassic early dinosaur Coelophysis
