values in their path. Then, as they pass over changed pixels, their
behavior is influenced.
-http://en.wikipedia.org/wiki/Langton%27s_ant
-http://en.wikipedia.org/wiki/Turing_machine
+https://en.wikipedia.org/wiki/Langton%27s_ant
+https://en.wikipedia.org/wiki/Turing_machine
Written by David Bagley; 1997.
</_description>