Whether it is how many numbers you can see in a picture or whether you can spot all the soldiers who had camouflaged themselves into the background during an exercise, the internet is full of illusions like this:
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Unrecognisable animal
And this photo of an unidentifiable animal is one such challenge. Twitter users from all over the world have been guessing what this animal could be: a goat, a small horse, or a pig, perhaps?
False perception
What do you think it is? At first glance, your brain actually plays a trick on you. As it turns out, lots of users actually see a snout when they first look at the photo when it is actually an ear of a little dog.