Assertion: humpback whale's calf | /r/HasProperty | born
Facets:
value: tail-first
type: MANNER
value: usually
type: DEGREE
value: between april
type: TEMPORAL
Source sentences:
text: After successfully mating, it takes about 11 months before the calf is born.
text: Gestation lasts about 11 months, and every one to three years a single calf is born.
text: The whale babies are called calves and generally only one calf at a time is born, although exceptions do happen from time to time.
text: After the calves are born, the male whales actually assume the nurturing role.
text: The gestation is approximately 11 months, calves being born between December and April in the north Pacific.
text: The calves are usually born tail-first, though some head-first deliveries have occurred.
text: It cane take 9-18 months before calves are born and females can only have one calf ever 1-3 years.
text: After mating, it takes about 10 months for the young calf to be born.
text: There is little food for Humpback Whales in warm waters, so after calves are born, Humpback Whales migrate back toward more temperate areas, like the waters off British Columbia.