“What we find is that tyrannosaur embryos would have been the largest hatchlings to ever emerge from an egg, and so they must have had enormous eggs,” paleontologist Gregory Funston, who led a study recently published in Canadian Journal of Earth Sciences, told SYFY WIRE. “Our embryo is even larger than that of an Elephant Bird, which had the largest eggs (by volume) of any animal.” Now extinct, the Aepyomis or elephant bird could make an ostrich look like a chicken. This thousand-pound beast stood 10 feet tall and was believed to be the largest bird that ever roamed the planet. Its...