A group of researchers led by Prof J. William Schopf from the University of California, Los Angeles, has discovered a type of deep-sea microorganism that appears not to have evolved over 2.3 billion years. Modern and 2.3 – 1.8 billion years old sulfur-cycling microorganisms. Image credit: J. William Schopf et al. Prof Schopf and his colleagues examined a mud-inhabiting sulfur-cycling microbial community that is 1.8 billion years old and was...
