The sudden disappearance of all dinosaurs at the end of the Cretaceous period 65 million years ago has become a mystery in the history of biological evolution on Earth. This mystery remains unsolved. All the creatures of the earth’s past are recorded in fossils. In the Mesozoic strata, many dinosaur fossils have been found. Among them, a large number or various shapes of bones can be seen. However, in the following Cenozoic strata, no fossils of non-bird dinosaurs can be seen at all. It is inferred that the non-bird dinosaurs went extinct together in the Mesozoic. Today, only birds are left. Most scientists agree that “birds belong to Dinosaurs”. There are many kinds of dinosaurs, and the body shape and habits are also quite different. The largest Fragile Ambientosaurus may exceed 50 meters, while the smallest hummingbird may be less than 10 centimeters. In terms of eating habits, there are docile herbivores and ferocious carnivores, as well as omnivorous dinosaurs that eat both meat and vegetables. Ruled the earth for about 80 million years.
Urban stainless steel sculpture is a relatively common urban sculpture. Urban stainless steel sculpture has the characteristics of resistance to weak corrosive media such as air, steam and water and chemical corrosive media such as acid, alkali and salt, because stainless steel sculpture has many advantages. Therefore, many urban sculptures are made of stainless steel. Urban stainless steel sculptures are generally welded and firm, that is, the skeleton of the sculpture itself is welded with the embedded iron on the base, and the steel bars are welded under the embedded iron. The length of the steel bars and the size of the embedded iron are determined according to the size of the sculpture. For the sake of beauty, usually, after the sculpture is installed, the base will be pasted with marble or granite slabs. As the landmark building of a city, urban stainless steel sculpture is the business card, soul and eye of the city, representing the cultural connotation of a city, and also reflecting the spiritual temperament of a city. It is the most effective way to artistically record the history and culture of the city. It is the track and witness of the growth of a city.