Dusclops have often been compared to black holes, for both are famous for devouring light. For this reason, they have long been despised by spelunkers, for Dusclops find torches to be a delicious meal. The size of their flames is an easily digested yet filling portion, and because they are carried into caves, Dusclops need not go far to devour them.
Today, spelunkers are not the only ones Dusclops inconvenience. Modern Dusclops are known for targeting streetlights or raiding houses to eat the light from lamps, instead of hunting for luminous fire and electric pokemon like their predecessors. This change can be attributed to the rise of electrification, for it has become far easier for these pokemon to hunt human lights than pokemon ones and still return home by the rising of the Sun, whose light the Dusclops find so bright as to cause them physical pain. Villages near caves Dusclops are known to inhabit often take precautionary measures, such as patrolling outdoors with Mightyena or Absol; rarely are these ghostly pokemon ever caught.
Yet while black holes are devourers from which no light escapes, a Dusclops' light shines brightly, trapped within its master. The single, glowing red eye in the center of their faces is made not of an iris, pupil, and the other parts of the normal eye; it is the perpetually glowing light of all which a Dusclops has ever eaten, and forms at evolution when a Duskull's food reserves are converted into pure light. When endangered, small portions of its eye may be used as a weapon to burn or blind the foe. Yet every Dusclops must be careful, for if they use up all their light, they are doomed to drift around as blind as a Zubat for the rest of their days.