As scientists continue to find incredible diversity in the smallest of organisms, realizations of all we've been missing are changing conceptions of life.
News sites are celebrating a "spectacular" new record for fossil DNA, claiming horse genes found in permafrost are 700,000 years old, placing the common ancestor two million years earlier than thought.
Most of our therapeutic agents have been derived from bacteria. A new survey shows we have barely tapped the surface of potential medicines beneath our feet.