Only 1 in 100 will find the difference between images in 1 second

How long have you experienced your ability to concentrate and work quickly?
We present to your attention several images that depict the same silhouettes of animals.
Your task is to find the cat that is different from all others in 1-6 seconds.

At first glance, the task may seem quite simple. However, statistics show that only 1 in 100 can find the desired image in 1 second.
