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Muttations, sometimes referred to simply as mutts, are animals that have been genetically altered, bred, or engineered by the Capitol for use as weapons, forms of torture and intelligence.

Tracker Jackers[]

Main article: Tracker Jacker

Tracker jackers are deadly wasps that were made by the Capitol and placed around the districts during the first rebellion. They are larger than regular wasps and have a gold-colored body. Their stings raise lumps the size of plums on their victims, and their venom (engineered to target fear in a victim's brain and alter their memories) causes hallucinations that can drive people to madness. More than a few stings will kill a person; some people die after just one. These mutts will also hunt down anyone who disturbs their nest and attempt to kill them, hence the name tracker jackers.