Assertion: humpback whale | /r/CapableOf | slap its peduncle
Facets:
value: on the surface
type: LOCATION
Source sentences:
text: Humpback whales can be seen performing a variety of behaviors during the winter months in Hawai'i, one of which is the "peduncle slap", in which the whale throws its tail out of the water and in the process, slaps its peduncle on the surface.