Assertion: humpback whale's flipper | /r/HasProperty | pectoral
Facets:
Source sentences:
text: In these encounters, they actually use their pectoral flippers to flail about, while slapping their flukes against the water and bellowing loudly.
text: Humpbacks have the longest flippers (pectoral fins) of any whale, and the leading edge of the fin has ridges that increase their hydrodynamic efficiency.
text: In these encounters, they actually use their pectoral flippers to flail about, while slapping their flukes against the water and bellowing loudly.
text: Humpback whales have pectoral flippers that are as long as 1/3 their body length and are a contrasting white color.
text: Their long, narrow, wing-like flippers (pectoral fins) have knobby trailing edges.