Assertion: bat's mother | /r/HasAspect | one pup
Facets:
value: a year
type: TEMPORAL
Source sentences:
text: Each mother has one pup a year and can identify her offspring based on scent and calls.
text: During the month of May, temperatures are warm enough for bats to leave roost sites via one-way doors to hunt at night, but this is before the maternity season when mothers have their pups.