Hidden expertly among the thick foliage is a well-camouflaged coyote, blending almost perfectly with its surroundings. The real test is whether you can spot the animal within eight seconds using only ...

An optical illusion is a fascinating visual trick that plays with the way our brain and eyes work together. Sometimes, what we “see” isn't really what's “there,” and that's what makes optical ...

Test your vision and IQ with this optical illusion challenge! Spot all 11 hidden cats around the old lady in just 11 ...

Curious images known as optical illusions prove seeing isn't always believing. Oct. 13, 2009— -- Look at an optical illusion and you may think you're seeing things -- such as a curved line ...

Study finds some experts can outsmart optical illusions 02:09. New York — At the Museum of Illusions in New York City, around every corner is a wonder for the eyes. There's a vase that's a face ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception. ... How Two Neuroscientists View Optical Illusions.