O que veio primeiro, a galinha ou o ovo? Cientistas acreditam que finalmente resolveram o antigo debate
The Debate: The question of which came first, the chicken or the egg, has puzzled people for centuries.
Scientific Perspective: Scientists suggest the egg came first, but with a twist—laid by a bird that wasn't quite a chicken.
Evolutionary Explanation: The egg came first through evolution, as genetic mutations gradually transformed an earlier species into the modern chicken.
Genetic Mutations: A mutation in the DNA of a bird species laid the first true "chicken egg."
Pre-Chickens: The ancestors of chickens, like the red junglefowl, laid eggs long before the first chicken emerged.
Eggshell Proteins: Researchers found that the protein responsible for chicken eggshell formation is produced by chickens, suggesting the egg was first.
The Role of Evolution: Over many generations, the evolution of egg-laying species led to the birth of the chicken as we know it today.