A little green around the middle

People have different skin colors. Humans are peachy in the face. But what if you aren’t human. Millions of humans have roamed the earth during different time periods. Cavemen and cavewomen talked in tongues. Cavemen and cavewomen ate insects. Bugs were the only food  available during this time period.  Cavemen and cavewomen used rocks for sinks. A green odor erupted from the depths of the mouth. Cavemen and cavewomen should have practiced good hygiene.