As soon as the breeding season arrives, adult dinosaurs are busy looking for their "Mr. Right". Soon, the mother dinosaur had a baby in her belly. However, dinosaurs are egg-laying animals, so their mothers are pregnant with eggs, not small dinosaurs.

Mother dinosaurs often laid eggs in nests on the ground, ranging in number from a dozen to thirty. They bury eggs in sand or cover them with plants, and let them hatch by themselves in the sun. Dinosaur eggs come in different shapes, some oblate, some oval, some slender, like corn cobs. Small dinosaur eggs are similar to duck eggs, and the diameter is less than 10 cm. Q dinosaur egg, 30 cm in diameter, found in France, about the size of a basketball. It is the largest dinosaur egg in the world. Unfortunately, dinosaur eggs can't be any bigger, because there is no thick eggshell to support them. If the hard shell is too thick, it will be difficult for small dinosaurs to break out of their shells.