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If the images you see make you feel slightly uneasy or completely grossed out, congratulations!
You're likely experiencing some degree of trypophobia, an intense fear of clusters of
small holes. This fear is said to affect around 15 percent of people worldwide.
Trypophobia is not yet recognised as a legitimate phobia
The contrast between the dark holes and the light surface, and the even spacing in a repeating
sequence apparently makes some people want to puke.
The researchers suspect that these patterns relate to things we see in venomous animals,
such as the blue-ringed octopus, and certain spiders and snakes, and hence trigger something
in our subconscious brains that tells us we could be looking at something dangerous or
life-threatening.