Assertion: booby's behavior | /r/HasProperty | documented
Facets:
value: rarely
type: DEGREE
value: before
type: TEMPORAL
Source sentences:
text: In a paper published online today in Frontiers in Ecology and the Environment, Laidre describes how he watched and captured footage of a coconut crab attacking and killing a red-footed booby in the middle of the night, behavior that has rarely been documented before.