THERE is more than meets the eye within this old tree. If you can spot the owl in less than 10 seconds, you may have perfect vision and a high IQ. This optical illusion puts your brains to the test by asking you to find the camouflaged owl.

Photographer Larry Lynch took the picture as the owl rested in a tree near his Florida home. "I felt very excited and relieved that the image turned out so well," Lynch said, per the Daily Mail . "The lighting set-up for this photoshoot was complicated.

Read More On Optical Illusions "We were shooting in the dark, so we needed a main light source to act as the sun and a fill light to open up or lighten harsh shadows created by the main flash," he continued. "This is the same technique that is sometimes used in a portrait photography studio. "I have learned a lot about these beautiful birds in the last couple of years so I think there's a very good chance I will be able to use the knowledge gained to locate and photograph another nest in the future.

" The beautiful bird blends in seamlessly with the brown tree bark. Most read in The US Sun While it may be difficult to spot, it is not impossible. Can you spot the owl in under 10 seconds? If not, do not worry — this is a very challenging brain teaser ! Keep scrolling for a hint.

Focus your attention on the top center-left of the photo. Have you found the owl yet? Researchers have developed many tests to show how various brain regions react to brainteasers and optical illusions. There are man.