Dinosaur parenting: How the 'chickens from hell' nested
How do you sit on your nest of eggs when you weigh over 1,500kg?
Carefully - according to a new study from an international team of researchers in Asia and North America.
Dinosaur parenting has been difficult to study, due to the relatively small number of fossils, but the incubating behaviour of oviraptorosaurs has now been outlined for the first time.
Scientists believe the largest of these dinosaurs arranged their eggs around a central gap in the nest.