About Thomas S. Ray
Thomas S. Ray is an American evolutionary biologist known for his research in tropical biology, digital evolution, and the human mind. In 2000, he implemented a new system called Virtual Life, building upon Evolved Virtual Creatures, a concept originally created by Karl Sims. Like other digital evolution systems, Tierra eventually reaches a point where novelty ceases to be created, and the system at large either begins looping or ceases to 'evolve'. In 1998 Ray became a Professor in the Zoology (later Biology) & Computer Science departments at the University of Oklahoma.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.