Single births are usual, following a gestation period of about 200 days.The infant may nurse for up to two years, but once weaned, it ceases to have contact with its mother.

• 黑叶猴通常只生一胎，怀孕期长达200天左右，通常喂奶2年，但一旦断奶，就不会再和母猴接触。