Assertion: earthworm's clitellum | /r/HasProperty | pack saddle
Facets:
Source sentences:
text: However, they have a unique reproductive organ, the ring-shaped clitellum ("pack saddle") around their bodies, which produces a cocoon that stores and nourishes fertilized eggs until they hatch   or, in moniligastrids, yolky eggs that provide nutrition for the embryos.  
text: However, they have a unique reproductive organ, the ring-shaped clitellum ("pack saddle") around their bodies, which produces a cocoon that stores and nourishes fertilized eggs until they hatch or, in moniligastrids, yolky eggs that provide nutrition for the embryos.