Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Ectopic Kidney ?
    ### Response:
    During fetal development, a babys kidneys first appear as buds inside the pelvisthe bowl-shaped bone that supports the spine and holds up the digestive, urinary, and reproductive organsnear the bladder. As the kidneys develop, they move gradually toward their usual position in the back near the rib cage.
    