北极的"居民"是如何过冬的?

Bighorn Sheep

Bighorn sheep live in divided herds: ewes and lambs together in larger groups, rams in smaller bachelor herds. They usually only cross paths in the fall for mating.

大角羊

大角羊这种生物是分开聚居的：母羊和羔羊在一起，公羊单独聚成一个小群体。两个群体只有在秋天交配的时候才会碰面。