Assertion: dolphin's offspring | /r/HasProperty | calf
Facets:
Source sentences:
text: Although dolphins are more closely related to dogs than cows, the males are called bulls, the females cows, and their offspring are calves.
text: Some female dolphins also produce a burst-pulse to reprimand their offspring, called calves, for bad behavior.
text: Nearly all species give birth to a single offspring, known as a calf.