Ancient Microbe Discovery Resolves Chicken-or-Egg Debate

Research reveals that eggs existed long before the first animals, challenging traditional evolutionary timelines.

The study focused on Chromosphaera perkinsii, a unicellular organism discovered in 2017, which predates animals by over a billion years.
Scientists found that C. perkinsii forms multicellular colonies resembling early animal embryos.
This behavior suggests that the genetic framework for egg development existed before animals evolved.
The research implies that multicellular development mechanisms may have evolved independently in C. perkinsii.
Published in Nature, the study provides new insights into the transition from unicellular to multicellular life.