A recent fossil discovery from northern China sheds some light on the social behaviour of dinosaurs. A rock slab was found with 24 young dinosaur skeletons and the skull of an older individual, all of the species Psittacosaurus lujiatunensis. The older individual may have been a caretaker for the young'uns, demonstrating a social childcare system similar to that of several extant species of dinosaur (also known as birds), such as the fairy wren.

It is also possible that the juveniles and older dinosaur were found fossilized together due to processes after death, such as a river sweeping all of their bodies towards the same deposition site.

If the larger individual was indeed a babysitter for the assorted young dinos, may I suggest that we name it Rosalyn?