3-D fossil eggs reveal how pterosaurs lived

The spectacular discovery of three dimensional 120-million year old pterosaur eggs provides a unique insight into the ancient flying reptiles' lifestyle. Until now, only four pterosaur eggs had ever been found, and all were flattened during the process of fossilisation. But Chinese scientists have unearthed five three-dimensional pterosaur eggs at a site in northwestern China that also includes no fewer than 40 adult individuals of a newly identified species that lived in a bustling colony near a large freshwater lake.