Baby tyrannosaurs were about the same size as a dog, new research shows CNNBaby tyrannosaurs dinosaurs were the 'size of a Border Collie' BBC NewsDinosaur embryo find helps crack baby tyrannosaur mystery Phys.orgBaby tyrannosaurs were only the size of a Border Collie dog when they took their first steps Daily MailTyrannosaur babies were the size of dogs when they took their first steps CNETView Full Coverage on Google News