A 70-million-year-old dinosaur embryo, preserved in remarkable detail, has been discovered inside a fossilized egg. The find ...

Researchers used a high-energy particle accelerator in France to produce rare, high-resolution three-dimensional ...

A rare set of exquisitely preserved dinosaur embryos unearthed in the Patagonian badlands is revealing how dramatically the animals changed as they grew from mere 15-inch hatchlings into bus-sized ...

The scientists discovered the embryos in a layer of sedimentary rock (known as a "bone bed") containing bone fragments and shards of once-intact dinosaur eggs. The science journal Nature, where the ...