PROBLEM TO BE SOLVED: To provide lungs of a non-human animal being formed by being at least partially flaked off the pleura on a surface, and having an ablation space storable of air between the pulmonary alveoli parenchyma and the pleura.SOLUTION: There are provided lungs of a non-human animal of cystic lung disease capable of obtaining stabilized clinical conditions, and a making method of the same.COPYRIGHT: (C)2013,JPO&INPIT【課題】表面の胸膜の少なくとも一部が剥離されることにより形成され、かつ肺胞実質と胸膜との間に空気が貯留できる剥離空間を有する非ヒト動物の肺を提供する。【解決手段】安定した病態が得られる非ヒト動物の嚢胞性肺疾患の肺、及びその作製方法。【選択図】なし