Chicken or egg first?

The causal dilemma of chicken or egg first wants to express the question of "whether the egg comes first or the chicken comes first". This chicken-to-egg problem often arouses ancient philosophers to explore and discuss the origin of life and the universe.

Chicken or egg first?

According to the American Life Science Network, the battle between chicken and egg has been going on for a long time, and the answer to the puzzling old riddle of whether it is the first chicken or the first egg has finally been solved. After studying the fossilized dinosaur eggs from 77 million years ago, scientists announced that the answer to the puzzle was the egg before the chicken.

77 million years ago, when sea levels rose, the mother of a small carnivorous dinosaur had to run for her life without her unhatched baby. 77 million years later, paleontologists found five incomplete eggs in a sandy nest that was half a meter wide and weighed 50 kilograms, equivalent to the weight of a person. Francois, curator of the Dinosaur Museum and paleoecology researcher at the Royal Tyrell Museum in Alberta, Canada, said: "this nest has some characteristics in common with birds, through in-depth analysis and study, it will help us reveal the ancient unsolved problem, is it the chicken or the egg first?"

The answer to the dispute between chicken and egg

The egg or the chicken has always been a hot topic of debate. Recently, Dara Zelensky, a paleontologist at the University of Calgary in Alberta, Canada, said that through the study of fossilized dinosaur eggs from 77 million years ago, the clear answer emerged: dinosaurs first built nests similar to bird nests, laid eggs similar to bird eggs, and then dinosaurs evolved into birds (chickens are also a kind of birds), which is clear that eggs exist before chickens. Chickens evolved from these egg-like carnivorous dinosaurs.

The nest found in North America provides the strongest evidence that bird-like or chicken-like eggs precede chickens. Therefore, the original puzzle can now be rewritten as: is it a dinosaur or an egg?