Having no marsupial pouch, the mother presses the patagium into service.

但它们没有像有动物一样的育儿，这时猫猴妈妈的翼上用场了。

Many species have a pouch (marsupium), a fold of skin covering the nipples on the mother's lower belly, where the young continue their development.

许多品种都有一个育儿（marsupium），在母体下腹盖住乳头的皮，幼体在续发育。