Assertion: cecum | /r/ObjectUse | used by now-extinct predecessors
Facets:
value: for digesting food
type: PURPOSE
Source sentences:
text: No less than Charles Darwin first suggested that the appendix was a vestigial organ from an ancestor that ate leaves, theorizing that it was the evolutionary remains of a larger structure, called a cecum, which once was used by now-extinct predecessors for digesting food.