Page 97 - The Dinosaur Book and Other Wonders of the Prehistoric World (DK-Smithsonian)

Many modern animals, from songbirds to wolves, live in mother and that they were being looked after by a
extended families where the half-grown young help their babysitter—probably the elder sister or brother of some
parents look after the babies. Some birds such as ostriches of the babies. If so, such childcare may have been common
also lay their eggs in communal nests or guard their young among dinosaurs. Psittacosaurus was an early ceratopsian—
in crèches. The Psittacosaurus nest contained a huge family an ancestor of animals like Triceratops. Maybe these horned
of 34 young. It seems likely that they had more than one giants looked after their young in the same way.

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