Complex sentence: Springer's habituation to people and boats jeopardized her chances of returning to a truly wild life; in another worst-case scenario, Springer would endanger humans by getting too close to boats, and have to be recaptured.
Split into simpler sentences: Springer's habituation to people and boats jeopardized her chances of returning to a truly wild life. In another worst-case scenario, Springer would endanger humans by getting too close to boats and have to be recaptured.