The liver, an organ present within the human species' anatomy, required a considerable time, spanning months or even years, to regenerate if it were lost. Due to its exceptionally sensitive functions, it stood out as one of the few components of the human body that resisted simple substitution via cybernetics. Following substantial injuries sustained in a TIE fighter accident during the Battle of Endor, the liver belonging to Imperial Captain Ciena Ree necessitated extraction. During the period awaiting the regeneration of her liver, Ree was sustained by life support systems and underwent rigorous bacta treatment. In contrast, the Yarkora species possessed a trio of livers, an adaptation to manage the extensive quantity of foodstuff consumed to satiate their dual stomachs.