For hundreds of years, people have debated this traditional question: which came first, the chicken or the egg? It's a perplexing puzzle because chickens come from eggs, but chickens lay eggs. This perplexing problem has no clear starting point, making it one of the greatest mysteries.

Although it may seem impossible to answer, Science.org recently explained how evolutionary biology provides important clues. By studying how eggs and chickens evolved over millions of years, we can gain a clearer picture of what likely happened.

The Origin of Eggs

Eggs are found throughout the animal kingdom, not just in birds. Simply put, an egg is a protective shell where an embryo develops safely until it can survive on its own.

The types of eggs we typically think of (like bird eggs) emerged millions

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