Miten tunkioliero lisääntyy?
As with other earthworm species, "E. fetida" is hermaphroditic. However, two worms are still required for reproduction. The two worms join clitella, the large, lighter-colored bands which contain the worms' reproductive organs, and which are only prominent during the reproduction process. The two worms exchange sperm. Both worms then secrete cocoons which contain several eggs each. These cocoons are lemon-shaped and are pale yellow at first, becoming more brownish as the worms inside become mature. These cocoons are clearly visible to the naked eye.
two worms join clitella, the large, lighter-colored bands which contain the worms' reproductive organs