They breedinandin... Marrying their cousins-nay, their aunts and nieces.
他们近亲结婚……娶他们的堂表妹—不仅如此，还娶他们的姑妈和侄女。
2
Ducks are birds that feed andbreedin areas where there is a lot of water, but their habitats have been shrinking in recent decades because of the droughts.
鸭子是在有大量水的地方觅食和繁殖的鸟类，但近几十年来，由于干旱，它们的栖息地一直在缩小。
3
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breedin the Arctic and are displacing birds of less vigorous species.