A fossilized dinosaur egg has unearthed secrets hidden for millions of years. Inside, a perfectly preserved embryo shows a posture strikingly similar to that of modern bird embryos. This ...

U.K. "We were surprised to see this embryo beautifully preserved inside a dinosaur egg, lying in a bird-like posture. This posture had not been recognized in non-avian dinosaurs before." The ...

Embryos that fail to tuck have a higher chance of death ... posture with the head bending upon the chest up to hatching. Oviraptorosaurs, which means “egg thief lizards,” were feathered ...