A 66-million-year-old fossil of a complete baby dinosaur in its egg, apparently just a few days before it would have hatched, shows the remarkable similarities between theropod dinosaurs and the birds ...

Over the last 100 years, many fossilized dinosaur eggs and nests have been found, but finding one with a well-preserved embryo inside is exceedingly rare. Now, researchers reporting in the journal ...

New research on the teeth of fossilized dinosaur embryos indicates that the eggs of non-avian dinosaurs took a long time to hatch--between about three and six months. The study, led by scientists at ...