Maniraptoran nests reported in 2008 in the journal Science suggests these theropods may have done daycare daddy style. Shown here, an illustration of a Troodon dad watching over an egg-filled nest. [Read full story]
Although scientists had discovered what they thought were Protoceratops nests since the 1920s, opening up the eggs revealed they actually belonged to an Oviraptor, a meat-eating dinosaur suspected to have lurked around these eggs to eat them. Shown here, the fossil remains of a nesting Oviraptor, dubbed "Big Mama," complete with eggs.
The mother dinosaurs of the prosauropod Massospondylus were much larger than their little infants. Shown here, the head of a Massospondylus nicknamed Big Mama by the scientists with an embryo of the same species.