In "Leela's Homeworld," it is revealed that Leela is not an alien but a mutant whose parents gave her up to the Surface World orphanage to provide her with a better life.
This season leans heavily into the internal mythology of the series while strengthening the bond between the core cast. Futurama - Season 4
While it is the fourth production season, Fox broadcast these episodes across its fourth and fifth seasons. In "Leela's Homeworld," it is revealed that Leela