From Fringepedia - The FRINGE wiki
In Pilot, The Steig Brothers refers to Morgan Steig and Richard Steig, who were assumed to be identical twins by the rapidly unfolding Multi-Agency Task Force investigation. Subsequent episodes revealed that human clones, rapidly reproduced, are a possibility in the saga, suggesting that the "natural twin" status of the Steigs may not be accurate.
|— Plot Relevant Questions —||Address theories about questions on Steig Brothers/Theories Ask minor questions on the Talk Page|
1) Do not answer the questions here.
- Are the Steigs brothers, or clones?