Assertion: sperm whale's family | /r/HasProperty | ziphiidae
Facets:
Source sentences:
text: Beaked whales comprise at least 22 species of small whales in the family Ziphiidae, which is one of the least-known families of large mammals; several species have been described only in the last two decades.
text: The family Ziphiidae is one of the most widespread families of cetaceans, ranging from the ice edges at both the north and south poles, to the equator in all the oceans.