chicken or egg – UNIAN
The genetic tools needed to create eggs existed long before nature invented the chicken.
A fossilized prehistoric organism discovered in 2017 led scientists to conclude that eggs existed long before the first animals, implying they came before the chicken.
Chromosphaera perkinsii, a single-celled organism discovered in Hawaii, first appeared at least a billion years ago and underwent cell division to produce what resembled an egg precursor.
Scientists from the University of Geneva discovered that this organism has formed multicellular structures that bear a striking resemblance to animal embryos.
The results, published in the journal Nature, indicate that eggs existed long before the first animals appeared.
“Although Chromosphaera perkinsii is a single-celled species…
