-This animates a 3D rendition M.C. Escher's "Moebius Strip II",
-an image of ants walking along the surface of a moebius strip.
+M. C. Escher's "Moebius Strip II", an image of ants walking along the
+surface of a moebius strip.
+
+http://en.wikipedia.org/wiki/Moebius_strip
+http://en.wikipedia.org/wiki/Maurits_Cornelis_Escher