Assertion: humpback whale | /r/CapableOf | perform acrobatic stunts
Facets:
value: often
type: TEMPORAL
Source sentences:
text: They resurface every 7 – 20 minutes to take a breath of air, and while they are at the surface they often perform some acrobatic stunts that are possibly used to communicate.
text: Divers and snorkelers come from all over the world to hear these humpback whales sing and watch them perform their aerobatic stunts.