Vestigial organ An organ that is functionless and generally reduced in size but bears some resemblance to the corresponding fully functioning organs found in related organisms.
Vestigial organ An organ that is functionless and generally reduced in size but bears some resemblance to the corresponding fully functioning organs found in related organisms.
痕迹器官：一些没有功能，体积缩小但与相关物种的相应功能完全的器官具有一定相似性的器官。