Scientists from Geneva University discovered the building blocks of female reproductive cells, eggs, date back over a billion years, predating the evolution of chickens.
This multicellular behavior in C. perkinsii indicates that the genetic programs for embryonic development existed before animals evolved, allowing nature to 'create eggs' beforehand.
Marine Olivetta remarked on the discovery of C. perkinsii, highlighting its ability to link back more than a billion years, revealing ancient reproductive processes.
Previous studies indicate hard-shelled eggs, akin to chickens, likely appeared around 300 million years ago, showcasing the long timeline of egg evolution.
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