Assertion: lamprey's fish | /r/HasProperty | important
Facets:
value: for them
type: TRANSITIVE-OBJECT
value: in the study of animal behaviour
type: OTHER
value: especially
type: DEGREE
Source sentences:
text: Fishes have been especially important in the study of animal behaviour, where research on fishes has provided a broad base for the understanding of the more flexible behaviour of the higher vertebrates.
text: Dead and dying fish and other animals are an important source of nutrients for them and the hagfishes play an important role in the ecosystem of the sea by breaking down decaying animals that has sunk down to the sea floor.