Nature has its own Op artist: zebra. One thing that puzzles me as to why zebras develop such an eye catching Op Art on their body when it's in their interest to be less conspicuous. Could it be that God favoured lions who find them visually easy to spot?
Whatever the reason, I think zebra is a marvelous example of Op Art and what is more interesting is that no two zebras have identical pattern: sort of fingerprint for them.
Tiling done using the same base pattern. It has completely different feel about it!
