Assertion: dugong's calf | /r/HasProperty | single
Facets:
Source sentences:
text: Dugongs have a 13-15 month gestation, and give birth to a single calf.
text: A dugong will mate once every seven years or so, and will usually give birth to a single calf, after about one year’s gestation.
text: Typically, dugongs produce single calves after a gestation period of about a year; the calf remains with the cow for more than a year.
text: A female dugong gives birth to a single calf after 13-15 months of gestation.