Icheb, a Brunali male, in an alternate timeline in 2394
Yifay and Leucon, two Brunali in 2376
The Brunali are an agricultural species whose world lies at the mouth of a Borg transwarp conduit in the Delta Quadrant. Once an advanced space-faring civilisation, frequent and devestating attacks by the Collective left the planet in ruins, with their population reduced to less than 10,000. In order to prevent further Borg attacks, the surviving Brunali returned to a low-tech state - any technology they do use is kept hidden in the hope that any passing Borg vessels will not be interested and simply pass by.
The Brunali were skilled in genetics, and used this as a tool against the Borg. They genetically engineered a child named Icheb with anti-Borg pathogens, who they sent in a small ship towards the Borg transwarp conduit. A passing Borg vessel assimilated Icheb and the virus was spread throughout the cube, destroying all the drones onboard with the exception of several Borg children left in maturation chambers, including Icheb. They were rescued by the USS Voyager. (VOY: "Collective")
In 2376, the USS Voyager made contact with the Brunali homeworld, intending to reunite Icheb with his parents, Yifay and Leucon, unaware of what they had done. Icheb's parents however once again hoped they could use him to destroy the Borg and sent him off to the conduit for a second time. Voyager's crew rescued Icheb on this occasion and left the planet behind. (VOY: "Child's Play")