Assertion: norway lemming | /r/HasAspect | several litters per year
Facets:
Source sentences:
text: Norway lemmings can reproduce all year round and may have several litters per year, although when food is scarce due to overpopulation, reproduction slows down.
text: Norway lemmings can reproduce all year round and may have several litters per year, each consisting of five to 12 young.