Assertion: cassowary's role | /r/HasProperty | crucial
Facets:
Source sentences:
text: Cassowaries are fascinating birds in their own right that play a crucial role in the function and maintenance of their communities, but they’re also of special interest because several aspects of their biology, behaviour and anatomy might be applicable to a range of weird extinct archosaurs – the irony being that we know about as much about living cassowaries as we do about the long-extinct animals I have in mind…
text: For this reason, the cassowary is known as a 'keystone species', as they play a crucial role in the way that the ecosystem functions.