The invention relates to a tool for collecting a sample of animal tissue, for interacting with collection means including at least one cutting element capable of cutting out said sample and a pushing element movable with respect to said cutting element and capable of pushing said sample into post-cutting storage means. According to the invention, such a tool includes: a means for driving said cutting element (21), a means for driving said pushing element (23), and a means for reversibly coupling said drive means of the cutting element with said drive means of the pushing element.