Assertion: marmoset | /r/HasProperty | kept as pet
Facets:
value: since the early 17th century
type: TEMPORAL
value: sometimes
type: TEMPORAL
value: by themselves
type: MANNER
Source sentences:
text: Interaction can be supplemented with toys, but if a marmoset is kept as a pet by themselves, it will rely on the human family to become its family group.
text: Marmosets are sometimes kept as pets, but they are very difficult to care for.
text: Marmosets have been kept as pets since the early 17th century, but they require knowledgeable care to remain healthy.
text: When marmosets are kept as pets, they often become aggressive when they reach adulthood.
text: For all these reasons we do not believe that marmosets should be kept as pets.