Scientists in China discovered two nearly spherical dinosaur eggs filled with mineral crystals, representing a new species and providing insights into dinosaur reproduction and embryonic development, especially of plant-eating ornithopods, alongside other well-preserved dinosaur fossils that enhance understanding of ancient ecosystems.
Fossilized eggs have revealed surprising information about the past, including the internal body temperature of dinosaurs, the domestication of cassowaries by humans, and the nesting behavior of various dinosaur species. Ostrich eggshell beads have also provided insight into early social networks, while ancient Australians' consumption of Genyornis eggs may have contributed to the bird's extinction. Additionally, modern egg collections show that climate change is causing birds to lay eggs earlier, impacting ecosystems.