India, Oct. 3 -- Optical illusions are the latest obsession of the internet, and nowhere is this more visible than on Reddit. The platform's famous community, r/FindTheSniper, is back again with another tricky challenge. This time, it is not a cat, snake, or deer hiding in plain sight; it is a frog blending perfectly into the bark of a tree. Posted by Reddit user Techfuture2, the picture has quickly gone viral, leaving people scratching their heads as they try to locate the little creature.

The picture shows a long tree in a quiet backyard or the edge of a forest, which is surrounded by greenery and sunlight. At first glance, you will see just a tree with branches and leaves, but there is a frog hidden in the details, and only the keenes...