Assertion: platypus | /r/ObjectUse | used as model
Facets:
value: for their venom delivery
type: PURPOSE
value: for properties
type: PURPOSE
value: for non-therian mammals
type: TRANSITIVE-OBJECT
Source sentences:
text: Rather than being a unique outlier, the platypus is the last demonstration of what was once a common mammalian characteristic, and it can be used as a model for non-therian mammals and their venom delivery and properties.