Viral news: Illusions of perception are fascinating. They play mind tricks on people, often perplexing them. They, on the other hand, are a lot of joy to respond to. On the Internet, such messages proliferate, confusing but entertaining readers. In fact, there are a plethora of optical illusion videos and images on the Internet. This one, for example, includes a hidden frog in the picture below and is a fantastic addition to the category of cool optical illusions.

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Examine the image carefully to see if you can spot the frog. Time is ticking away, so move quickly. Half of the time is already up. Only four to five seconds remaining. Do you want to find out what's hidden? Here's the answer