Assertion: dugong's size | /r/CapableOf | function as adaptation
Facets:
value: for survival in cool waters
type: PURPOSE
value: by providing the animal
type: MANNER
Source sentences:
text: The extremely large size of Steller’s sea cow functioned as an adaptation for survival in cool waters by providing the animal with a smaller ratio of surface area to volume than tropical sirenians, and the thick hide probably provided better insulation.