一两亿年前，地球是恐龙的天下，恐龙最大的长达26米。由于地球气候的突变，使它们不能适应环境而绝灭。恐龙虽是庞然大物，但它们却是卵生的。可是，在20世纪前地球上的任何地方都没有大量发现过恐龙蛋，直到1922年在我国北疆戈壁沙漠的西南边缘，发现了几乎难以置信的恐龙蛋 One to two hundred million years ago, the earth was the world of dinosaurs, the largest of which was 26 meters in length. Due to the abrupt change of the Earth’s climate, they can not be extinct due to their inability to adapt to the environment. Although dinosaurs are monstrous, they are oviparous. However, no dinosaur egg was found in abundance anywhere in the world until the 20th century until almost the unbelievable dinosaur egg was discovered in 1922 on the southwest edge of the Gobi Desert in northern China.