Jungle children were Homeworlder children placed by House Arpexia on Earth during the War in Heaven in an experiment on how biodata could be changed by being raised by the lesser species. The project's name came from Earth legends of children raised by wolves or apes.
Arpexia's jungle children possessed characteristics like night-vision, hallucinatory hysterics, and a strong sense of magnetism. These combined to cause society to briefly twist around the children in an effort to accommodate their impossible origins and accomplishments.
The project was mainly a failure, since the human "jungle" had little effect on the children's biodata. Entarodora was particularly sceptical of its intent, asking, "What did you expect, the King of the Apes?" It was ended in 1833. However, House Arpexia's data played a useful role in the Great Houses' later work on temporal vaccination. The experiment also inspired Entarodora's policy of "disturbance by mystery" later copied by Robert Scarratt.