1. Dinosaurs are oviparous animals. Dinosaur eggs are fossils formed by long-term crustal evolution of dinosaur eggs.

2. Dinosaur eggs are very precious paleontological fossils, which were first discovered in the Cretaceous strata of Provence in southern France in 1869. Because the number of dinosaur eggs found in the world is very small. What you usually see is the calcareous shell of eggs, and it is rare to find eggs with some dinosaur embryo fossils. It is difficult to judge which dinosaur produced the found egg fossils. Therefore, for a long time, the research on dinosaur eggs has not made significant progress.