Archives
  • Scientists Identify Rare Evolutionary Intermediates to Understand the Origin of Eukaryotes

    While simple prokaryotic bacteria formed within the first billion years of the Earth, the origin of eukaryotes, the first cells with nuclei, took much longer. Dating back to between 1.7 and 2.7 billion years ago, an ancient prokaryote was first transformed with a compartment, the nucleus, designed to keep their DNA material more protected from the environment (such as harmful UV damage). From this ancient event, relatively simple organisms, such as bacteria were transformed into more sophisticated ones that ultimately gave rise to all modern animals, plants, and fungi.