What came first: the egg or the chicken? According to science’s answer

The secret is revealed: The great mystery of “Which came first, the chicken or the egg?” Now there is an answer. According to a study published in the scientific journal Nature Ecology & Evolution, it has been revealed that the early ancestors of modern birds and reptiles may have given birth to surviving young, contradicting most people’s answer: the egg. Scientists show that the first reptilian ancestors of chickens, which existed millions of years before dinosaurs evolved, may not have laid eggs.

Discovery: But only now have scientists discovered that the ancestors of chickens may not have laid eggs, as everyone previously thought. According to experts who believe that “laying” hard-shelled eggs some 300 million years ago played a crucial role in the evolutionary success of species known as amniotes, including mammals, lizards, crocodiles and birds. Researchers from the University of Bristol and Nanjing University in China recently discovered that some egg-laying species must have evolved from ancestors that were viviparous, or from ancestors that gave birth to young.

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