Assertion: humpback whale's calf | /r/HasProperty | male
Facets:
Source sentences:
text: If this newborn calf is a male, he will one day learn to sing — and probably steal other whales' songs.
text: From DNA testing done through biopsy samples, it was learned that both whales are from the Eastern North Pacific stock of humpbacks (or California feeding population) and that the calf is a female.