Assertion: porpoise's calf | /r/HasProperty | born
Facets:
value: from may
type: TEMPORAL
value: during the rainy season
type: TEMPORAL
value: usually
type: DEGREE
Source sentences:
text: The young are born in shallow water, sometimes assisted by a (possibly male) "midwife", and usually only a single calf is born.
text: Typically dolphins give birth to a single calf, which is, unlike most other mammals, born tail first in most cases.
text: Porpoises mate during the summer months, and a single calf is born approximately 11 months later.
text: The gestation period of the female hippopotamus lasts for 8 months and a single calf is born during the rainy season.
text: Mating occurs from April to September, with a peak in July and August, and single calves are born from May to August the following year.
text: The gestation period is about 11.5 months, after which a single calf about 2.5-4 feet long is born.
text: As soon as the calf is born, the mother must quickly take it to the surface so it can take its first breath.
text: A 2007 study, though, showed a "complete disappearance of rest at the surface" for a minimum of 2 months after the calf was born, although occasionally the mother or calf were observed with an eye closed.
text: As soon as the calf is born, the mother nudges it to the surface for its first breath of air.