Mother dinosaurs may have protected their nests in groups

An 80-million-year-old dinosaur nesting site in the Gobi Desert of southeastern Mongolia has revealed that mothers worked in groups to protect their eggs just like some birds do today.  Study co-author François Therrien is an expert at the Royal Tyrrell Museum of Paleontology in Canada. "Dinosaurs are often portrayed as solitary creatures that nested on their own, buried their eggs and then just went away,” said Therrien. "But here we show that some dinosaurs were much more gregarious. They came together and established a colony that they …