Give it nine seconds; can you find it? Now is the time to demonstrate your keen eye for detail.
When we look at the world, our brains fill in the blanks with information that our eyes don't capture.
One of the simplest ways to gauge brain activity is with optical illusion visuals, which are intentionally misleading.
Researchers in the field of neuroscience have also studied the brain's reality perception using images of optical illusions.
It has been proposed that individuals can enhance their problem-solving abilities and lateral thinking by practicing optical illusion puzzles.
For birds, this is the perfect place to build a nest or forage for food.
Readers with keen eyesight will have the upper hand when it comes to spotting the bird.