Only 1% with sharp vision can spot an ant among butterflies 11 seconds!

Hungarian graphic artist Gergely Dudas recently shared an illustration which has gone viral on the internet. 

Optical Illusion

Optical illusions are images that test your perception and observation skills.  However, once you figure out how the illusion works, it becomes deeply fascinating.

Whenever you try to solve the illusions, some will leave you scratching your head or rubbing your eyes. The keys to solving these puzzles are a great focus, exceptional observational skill, and an eye for detail.