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Scientists find ancient fossil suggesting egg creation genes predate animals by a billion years.
Scientists discovered a fossilized unicellular organism, Chromosphaera perkinsii, which reproduces in a way similar to animal embryonic development.
This organism, dating back over a billion years, suggests that the genetic programming for creating eggs existed long before animals evolved.
The finding, detailed in Nature, challenges previous beliefs about the timeline of multicellular life's evolution.
5 months ago
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