It is believed that his parents were killed in 1982 during the war and the boy was abandoned in the forest. He was believed to be about three years old when he was left alone and lived in the wild for another three years.
As the soldiers roamed about the bushes, they spotted what looked unmistakably like a human being among the monkeys. They had to disperse the monkeys in order to rescue the boy, but it was a struggle because the monkeys put up a fight. One adult female monkey held Mayanja tightly to her bosom in an attempt to protect him.
Mayanja has learnt rudimentary life skills like toilet manners. He knows when it is time for toilet and does not soil himself. He walks to the toilet door and waits for someone to help him. He likes sunbathing and staying in isolation and sometimes makes monkey-like sounds.
When he was found, he could not sit or stand, but only squat and jump. He neither smiled nor talked, but made jungle noises, which quickly got him a new name — Monkey Boy.
In the beginning, it was a struggle to take him through the bathroom procedure, but now it is his favourite activity. Though he cannot dress himself, he voluntarily lifts his legs in turn to wear trousers and stretches out his hands for the shirt.
He does not know where to keep his clothes, though.
You can read more about this story here: http://www.newvision.co.ug/news/639913-raised-by-monkeys-strugging-to-be-human.html